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Network Theory Question & Answers

May 11, 2021 By WatElectronics

This article lists 100+ Network Theory MCQs for engineering students. All the Network Theory Questions & Answers given below include a hint and wherever possible link to the relevant topic. This is helpful for the users who are preparing for their exams, interviews, or professionals who would like to brush up their fundamentals on the Network Theory topic.

Electrical and Electronic Engineering deals with networks, circuits, and communication, which need to be analyzed and solved both practically and theoretically.

Network theory analysis is a science of solving circuits such as linear & nonlinear circuits with active, passive components and sources such as current source, voltage source, resistor, inductor, capacitor, etc related problems using various methods like Ohms law and Kirchhoff laws and theorems such as Tellegen's theorem, Thevenin's theorem, and Norton's theorems. 

Each of these methods and theorems has a unique style of solving simple and complex networking circuits. Network analysis is applied in the fields of computer science engineering, electronic engineering, electrical engineering, mathematics, and operation research.

1). Network in electronics or electrical is a collection of _________.

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2). An electric network in which current and voltage values are identified is called _______ process.

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3). The flow of current through 2 or more input/output terminals of an electrical or electronic device is called _______.

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4). A point where multiple component terminals meet is called ________.

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5). A conductor has _______ amount of resistance when considered as a node.

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6). When 2 nodes are joined together it is called ________.

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7). When a group of branches enclosed inside a network is joined to form a single alone, where no other loop exists within it is called _______.

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8). The 2 terminals where “I” current in one terminal is similar to current out of other terminal is called ______.

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9). An electrical network has an interconnection of ________ components.

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10). Which of the following are the electrical components used in electrical circuits?

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Read more about Switches.
11). Electrical elements consists of _________.

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12). ________ is defined as relations between voltage or/and current between input-output ports.

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13). A network has ________ number of standard ports.

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14). In a network, source is connected on _________ port.

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15). In a network load is generally connected on ________ port.

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16). A transfer function of network analysis can be represented as ________.

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17). A single port component has _______ number of terminals in a network.

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18). The voltage and current in a single port component are considered as _______.

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19. The voltage and current in a single port component are considered as output and input then its transfer function is expressed in terms of ______.

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20). A multi-terminal component has _______ ports.

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21). Can transfer function in a multiport be expressed as single impedance?

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22). Transfer function in a multiport can be expressed as _______.

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23). Multiport parameters are _________.

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24). Resistance of a wire is expressed in _______ units.

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25). Capacitance of 2 plates is expressed in terms of _______.

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26). Inductance of a material is expressed in terms of ________.

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27). A procedure to simplify a network can be done by ______ the number of components.

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28). ______ in a network are replaced with other network components which provide same effect same effect.

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29). _______ is the study to solve circuit-related problems.

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30). ________ are used while solving network circuits.

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31). Network theory deals with _______ type of elements.

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32). Which of the following are active components used in network analysis?

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33). Which of the following are passive components used in network analysis?

Hint
Read more about Capacitors.
34). What is the purpose of active components in network circuits?

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35). What is the purpose of a passive component in a network circuit?

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36). Does the parameters of a linear network change?

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37). Does the parameters of a non-linear network change?

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38). _______ is defined as the reciprocal of resistance.

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39). Conductance of a wire is represented as ________.

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40). Resistance in network circuits is represented as _______.

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Network Theory MCQs for Interviews

41). Conductance in network circuits is represented using SI units as ________.

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42). An inductor in network circuits is represented as _______.

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43). Impedance in network circuits is represented as ______.

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44). Reactance in network circuits is represented as _______.

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45). Reactance is measured in _______ units.

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46). _______ is defined as an opposition to the flow of current in a circuit due to its capacitance and inductance.

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47). In an electrical circuit if the value of reactance increases then the value of current will be ______.

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48). The reciprocal of reactance is _______.

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49). Susceptance is expressed in terms of _______ units.

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50). Susceptance in network circuits is represented as _______.

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51). The equation of Susceptance is _______.

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52). The equation of Conductance is _______.

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53). The equation of Admittance is _______.

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54). In an RLC circuit impedance is expressed as _______.

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55). _______ is expressed as the inverse of impedance.

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56). An ideal voltage source has _______ resistance.

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57). An ideal current source has _______ internal parallel resistance.

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58). Which of the following are the network theories used in networking circuits?

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59). Components in a circuit if connected one after the other is called ______ connection.

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60). Components in a circuit if connected one above the other is called ______ connection.

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61). If r1,r2,r3 are resistors in a serial circuit then the resistance is of serial circuit is calculated as _____.

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62). If r1,r2,r3 are resistors in a parallel circuit then the resistance is of parallel circuit is calculated as ______.

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63). Inductors follow the same mathematical law of ______ to define an electrical circuit connected in series or parallel.

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64). c1,c2,c3 capacitor in serially connected circuit is calculated as ________.

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65). c1,c2,c3 capacitor in parallel connected circuit is calculated as ______.

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66). Ohms law was developed by ________.

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67). Ohms law was developed by George Ohm in the year ______.

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68). A law that defines the relationship between current, voltage and resistance within a circuit is _______.

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69). Ohms law is mathematically expressed as ________.

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70). ______ is the theorem used to transform a current type generator into a resistor.

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71). Kirchhoff law has ______ number of additional theorems.

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72). Kirchhoff's 1st law defines the sum of ______ at a circuit node is zero.

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73). Kirchhoff 2nd law defines the sum of ______ around a closed loop is zero.

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74). ______ network theorem states that the sum of the power of all network branches is zero.

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75). Tellegen's network theorem can be applied to ______ elements.

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76). ______ networking theorem states that combining network elements can be represented as a single series resistor and voltage type source.

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77). Equivalent voltage in Thevenin's networking theorem is calculated using branch _____ type circuit.

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78). Resistance in Thevenin's networking theorem is calculated using by ______ type source type short-circuited source .

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79). _____ theorem in networking defines that summing network elements are represented as single parallel resistors and current source.

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80). Equivalent current in a Norton's theorem is calculated at _______ condition.

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Network Theory Exam Questions & Answers

81). Resistor value in a Norton's theorem is calculated at ___ condition.

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82). _______ source contains serial connection of a resistor and ideal voltage.

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83). _______ source contains parallel connection of a resistor and ideal current.

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84). Source conversion converts _____ source to _____ source.

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85). Which network theorem is applied to parallel branches of a circuit?

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86). How many configurations are used in networking circuits?

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87). Star configuration used in networking circuits is also called as _____ configuration.

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88). Delta configuration used in networking circuits is also called _____ configuration.

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89). ________ method depends on Kirchhoff’s first law.

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90). Nodal analysis has ______ number of steps.

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91). ______ in network theorem relies on Kirchhoff’s 2nd law.

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92). Mesh analysis involves ______ steps.

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Read more about Mesh Analysis.
93). What is the 1st step of mesh analysis?

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94). What is the 2nd step of mesh analysis?

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95). What is the 3rd step of mesh analysis?

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96). Which of the following is 1st step of nodal analysis?

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97). Which of the following is the 2nd step of nodal analysis?

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98). Which of the following is 3rd step of nodal analysis?

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99). What is 4th step of nodal analysis?

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100). A resistive type circuit contains ______ components.

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101). If a circuit operates with a constant current or voltage source, then the circuit is called a ________ circuit.

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102). If a circuit operates with varying current or voltage sources, then the circuit is called ______ circuit.

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103). Analysis process in a circuit deals with solving ______ within the circuit.

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104). If V1-V2 and I1=I2 of 2 circuits are equal with respect to their terminals, then the circuit is said to be _______.

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105). If V1-V2 and I1=I2 of 2 circuits are equal with respect to their terminals then the circuit is said to be equivalent is applicable for _____ ported network.

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106). Star configuration has _______ number of ports.

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107). Delta configuration has _______ number of ports.

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108). Z1, Z2, Z3…….Zn impedances in a serially connected circuit is represented as _______.

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109). Z1, Z2, Z3…….Zn impedances in a parallel connected circuit is represented as ______.

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110). Star network has ________ number of nodes.

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111). Delta network has _______ number of nodes.

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112). In series resistor of a star to delta, transformation is a special case of general _______ algorithm.

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113). The equation of 2 equivalent networks is given as ________.

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114). Kirchhoff's law was described by ________ physicist.

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115). Kirchhoff's law was described by physicist Gustav Kirchhoff in the _______ year.

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116). Kirchhoff's 1st law is also called _______.

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117). Kirchhoff's 1st law is mathematically represented as _______.

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118). Kirchhoff's 2nd law is also called as ______.

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119). Which of the following is the advantage of Kirchhoff's laws?

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120). Which of the following is the disadvantage of Kirchhoff's laws?

Hint

Network Theory Important Questions for Interviews

121). Kirchhoff's laws are fundamental to ______ theory.

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122). Kirchhoff's laws verify _______.

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123). Kirchhoff loop rule was derived from the ______ field.

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124). Which of the following is the 1st step in Norton's theorem?

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125). Which of the following is the 2nd step in Norton';s theorem?

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126). Which of the following is the 3rd step in Norton's theorem?

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127). Which of the following is the 4th step in Norton's theorem?

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128). At what condition in Norton's theorem the power supplied to load is maximum?

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129). Norton's theorem is applied to the networks with _______.

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130). Norton's theorem deals with ______ circuit theory.

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131). Norton's theorem was developed by _______.

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132). An equivalent circuit of Norton represents a network with _____ at a provided frequency.

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133). Norton's equivalent type circuit is similar to ______ equivalent.

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134). Which of the following are the equations of Norton equivalent type circuit?

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135). In a unilateral elements current flows in ______ direction?

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136). V-I characteristic in network theory is used to identify ___?

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137). In V-I characteristics of a network element, x-axis is plotted with ____ parameter?

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138). In V-I characteristics of a network element y-axis is plotted with ____ parameter?

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139). In queuing theory, the passive type circuit equivalent of Norton’s theorem is called _____.

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139). Which of the following is the disadvantage of Norton's theorem?

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140). Thevenin's theorem is applicable for _______ resistive circuits.

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141). Thevenin's theorem is also applicable for ______ AC circuits.

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142). Thevenin's theorem with AC circuits contains _______.

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143). Thevenin's theorem was developed by _______.

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144). Thevenin's theorem uses other laws such as _______.

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145). Which of the following is 1st step in Thevenin's theorem?

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146). Which of the following is the 2nd step in Thevenin's theorem?

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147). Which of the following is 3rd step in Thevenin's theorem?

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148). Which of the following is the advantage of Thevenin's theorem?

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149). VTH in Thevenin's theorem is ________.

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150). When the load resistor is open, then the voltage across it is called ______.

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151). Which of the following is the application of Thevenin's theorem?

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152). Which of the following are limitations of Thevenin's theorem?

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153). When the load resistor is open, then the voltage across the load terminals is called _______.

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154). Thevenin's voltage VTH is also called _______.

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155). The resistance measured by ohmmeter across terminals of load when load resistor is open and all sources are made zero is called _______.

Hint
Read more about Ohmmeter.
156). Thevenin resistance RTH is mathematically given as _______.

Hint
157). Tellegen's theorem is applied to complete type OS for ______ purpose.

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158). Does Tellegen's theorem depend on elements of a network?

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159). Tellegen's theorem is solved in _______ number of steps.

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160). Tellegen's theorem first step is _______.

Hint

Network Theory MCQs With Answers

161). Tellegen's theorem 2nd step is _______.

Hint
162). Tellegen's theorem 3rd step is _______.

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163). Which of the following are the applications of Tellegen's theorem?

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164. ______ theorem is based on linearity concept between excitation and response of an electrical circuit.

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165). Superposition theorem converts _______ equivalent circuits.

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166). Superposition theorem is applicable to _______ networks.

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167). Superposition theorem is applicable to linear type networks that has _____ components

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168). Superposition theorem works for _______ parameters.

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169). Can the superposition theorem when applied to 2 independent sources have the same frequency value?

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170). In power systems, if multiple generators are operated at 60 Hz can we apply the Superposition theorem.

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171). Superposition theorem in an electric circuit is analogous to _______ law.

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172). For 3 passive type 2 terminal components in an electrical network, the transfer function Z(s) of resistor is _______.

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173). For 3 passive type 2 terminal components in an electrical network, the transfer function Z(s) of an inductor is ______.

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174). For 3 passive type 2 terminal components in an electrical network, the transfer function Z(s) of a capacitor is ____.

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175). In Z(s), ”s” stands for ________.

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176). Z(s), ”s” is mathematically expressed as _________.

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177). Which type of circuit connection divides the current or voltage flow in an electric circuit?

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178). Transfer function Z(s) of the resistor in the frequency domain is represented as _________

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179). Transfer function Z(s) of an inductor in frequency domain is ____.

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180). Transfer function Z(s) of a capacitor in frequency domain is ____.

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181). In transfer function Z(s), the value of “s” at steady DC input for resistor R is represented as _______.

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182). In transfer function Z(s), the value of “s” at steady DC input for Inductor is represented as _______.

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183). In 2 terminal transfer function Z(s), the value of “s” at steady DC input for the capacitor is represented as _______.

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184). The transfer function in control theory is represented as ________.

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185). The transfer function in electronics theory is represented as _______.

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186). Can A(s) in the frequency domain be represented as A(jw)?

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187). Transfer function A(s), A stands for _______.

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188). A(w) is mathematically represented as _________.

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189). Which of the following are the methods used for non linear networks?

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190). Which of the following are time varying components?

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191). Sidney Darlington method is used for analyzing ____ time varying type circuits.

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192). Breaking of a non linear device into regions is observed in _______ method.

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193). Which of the following is an example of the piecewise linear method?

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194). _____ method is used by digital filters and transmission lines to determine their transfer parameters.

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195). Image analysis calculates _______.

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196). Transmission lines in networking are used for ________.

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197). Which signals flow through Transmission lines in networking?

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198). An electro magnetic signal contains _______ number of fields.

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199). An electromagnetic signal contains 2 fields, namely electric and magnetic fields align at ______ angle to each other.

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200). Transmission line was developed by ________.

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201). Which of the following is the application of network analysis?

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202). _______ is the imaginary portion of admittance.

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203). In V-I characteristic of linear element, if the voltage and current are positive then the impedance obtained is ___value.

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204). In V-I characteristic of linear element, if voltage and current values are negative then the impedance obtained is ___value

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205). In the V-I characteristic of the linear element, voltage and current values obtained are negative, lies in ______ quadrant.

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206). In the V-I characteristic of the linear element, voltage and current values obtained are positive, lies in ______ quadrant.

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207). Which of the following is the 1st step while performing V-I characteristic on a network element?

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208). Which of the following is the 2nd step while performing V-I characteristic on a network element?

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209). Which of the following is the 3rd step while performing V-I characteristic on a network element?

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210). Active elements are of ________ types.

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211). Independent type sources are of ______ types.

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212). Dependent type sources are of ______ types.

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213). Which of the following are the examples of Bilateral elements?

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214). Dependent type voltage sources are classified into ______ types.

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215). Dependent type current sources are classified into _______ types.

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216). There are ________ number of ways to transform a source.

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217). Power in an electrical circuit is mathematically expressed as ________.

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218). Voltage division principle is applied at _________ condition to a circuit.

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219). Mesh analysis is alternatively called ________.

Hint
220). Network topology is represented using _______.

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221). Network topology has _______ number of graph types.

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222). A branch between two nodes in a graph is called _________.

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223). A graph where all branches labeled with arrows is called ________.

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224). Directed graph is also called as ________.

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225). A graph where all branches are not labeled with arrows is called _______.

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226). Undirected graph is alternatively named as ________.

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227). A portion of a graph is called _______.

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228). Subgraphs are of ______ types.

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229). ______ is a branch of tree in network topology.

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230). Network topology type matrices are used in solving ______ problems using equivalent type graphs.

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