Hybrid Parameters Question & AnswersMarch 21, 2022 By WatElectronics This article lists 50 Hybrid Parameters MCQs for Engineering Students. All the Hybrid Parameters Questions & Answers given below includes solution and link wherever possible to the relevant topic. This is helpful for users who are preparing for their exams, interviews, or professionals who would like to brush up their fundamentals on the hybrid parameters.In electronics, the hybrid parameters are very useful in determining some of the amplifier characteristics. The hybrid parameters are represented by a letter h, and these parameters have mixed dimensions, because of mixed dimensions we call this parameter the hybrid parameter. The h parameters are easy to measure, convenient to use in circuit design and analysis, and they are easily convertible from one to another configuration. It is very useful in determining the input and output impedance as well as the voltage and current gain of the amplifier. The hybrid parameters are easy to measure and convenient to use in circuit analysis and design.The hybrid models were widely used before the popularity of re-model, re-model is also known as the dynamic emitter resistance model. In the case of the hybrid model, the parameters are defined in general terms for any operating conditions whereas in the case of the re-model the parameters are defined by the actual operating conditions. These hybrid parameters are very useful during the small-signal analysis of the transistor. The hybrid model is one of the equivalent models of transistors used in the small-signal analysis. The main advantage of the hybrid method is the circuit components are easily available and the procedure is easy to understand and quite simple.1). How many variables do a two-port network consists of? One Two Three Four HintThe voltage 1 and voltage 2, the current 1 and current 2 are the four variables of two-port network, out of four variables, two or dependent variables and two are independent2). The two-port network parameters are categorized into __________________ types? Four Two Six Seven HintThe T, T’, Y, Z, H, and g are two-port network parameters3). When current I2=0 then the Z parameter Z11 is equal to ratio of ________________? V1/V2 V1/I1 V1/I2 None of the above HintThe Z parameter Z11 is the open circuit input impedance4). Which one of the following is a driving point impedance equation? Z11(s)=V1(s)/I1(s) Y11(s)=I1(s)/V1(s) Both a and b None of the above HintThe impedance found at a given port is known as driven point impedance5). Which one of the following parameters is an open circuit reverse voltage ratio? h21 h11 h12 h22 HintThe hybrid parameters are easy to measure and convenient to use in circuit analysis and design6). How many ports does the below figure have? One Two Three Four HintThe pair of I1 is one port and the pair of I2 is one port7). Which one of the following is an admittance parameter equation? Z11(s)=V1(s)/I1(s) Y11(s)=I1(s)/V1(s) h11=V1/I1 None of the above HintThe admittance parameters are represented by a letter y8). Which one of the following is a hybrid parameter or h parameter equation? Z11(s)=V1(s)/I1(s) Y11(s)=I1(s)/V1(s) h11=V1/I1 when V2=0 None of the above HintThe hybrid parameters are represented by a letter h9). Which one of the following parameters is also known as inverse hybrid parameter? H-parameter Y-parameter G-parameter All of the above HintThe G parameters are also known as inverse h parameters or inverse hybrid parameters10). When current I2=0 then the Z parameter Z21 is equal to ratio of ________________? V2/I1 V1/I1 V1/I2 None of the above HintThe Z parameter Z21 is open circuit transfer impedance from port 2 to port 111). Which one of the following equations is an open circuit reverse voltage ratio? h11=V1/I1 h12=V1/V2 h21=I2/I1 h22=I2/V2 HintThe hybrid parameter h12 is an open circuit reverse voltage ratio12). The figure shown below is a circuit diagram of ________________ parameters of a simple transistor amplifier? H parameters Y parameters T parameters Z parameters HintThe h11, h21, h12, and h22 are the hybrid parameters Read more about Amplifiers13). Which one of the following is a mathematical expression for current gain? Ai=i2/i1 Ri=V1/i1 Av=V2/V1 Ro=V2/i2 HintThe ratio of i2 divided by i1 is known as the current gain14). What is the meaning of hybrid or h parameters and why do we use hybrid parameters? One dimension Two dimensions Three dimensions Mixed dimensions HintThe h parameters have mixed dimensions, because of mixed dimensions we call this parameter as a hybrid parameter15). Which one of the following equations in the below figure is a hybrid parameter set? Equation(1) Equation(2) Equation(3) Equation(4) HintThe hybrid parameter set is represented by the letter h where the inverse hybrid parameter is represented by gHybrid Parameters MCQs for Quiz16). The h22 is equal to _______________ in common collector arrangement? hib hie hic hoc HintIn hoc, the o indicates the nature of the parameter and b indicates the CC arrangement17). What is the dimension of hybrid or h parameters? Mho Farad Ohm None of the above HintThe dimension of hybrid or h parameters is ohms18). The value of input impedance is equal to _________________ in common emitter arrangement? Hoe Hie Hre All of the above HintFor input impedance, the Hie stands for a common-emitter arrangement with output shorted19). Which one of the following equations in the below figure is an inverse hybrid parameter set? Equation(1) Equation(2) Equation(3) Equation(4) HintThe inverse hybrid parameter set is represented by letter g20). When current I1=0 then the Z parameter Z12 is equal to ratio of ________________? V2/I1 V1/I1 V1/I2 None of the above HintThe Z parameter Z12 is open circuit transfer impedance from port 1 to port 221). What is the meaning of the hybrid parameter h21? Input resistance Output conductance Reverse voltage gain Forward current gain HintThe condition for the h21 hybrid parameter is it is a short circuit forward current ratio22). Which one of the following equations is a short circuit forward current ratio? h11=V1/I1 h12=V1/V2 h21=I2/I1 h22=I2/V2 HintThe hybrid parameter h21 is a short circuit forward current ratio23). The figure shown below is a ________________ connection of two port network? Parallel Cascade Serial None of the above HintThe parameters Na and Nb are cascaded in the above figure24). Which one of the following is a mathematical expression for input resistance? Ai=i2/i1 Ri=V1/i1 Av=V2/V1 Ro=V2/i2 HintThe ratio of v1 divided by i1 is known as the input resistance25). Which one of the following equations in the below figure is an open circuit impedance parameter set? Equation(1) Equation(2) Equation(3) Equation(4) HintThe impedance parameters are represented by letter z26). The h12 is equal to _______________ in common base arrangement? hrb hie hic All of the above HintIn hrb, the r indicates the nature of the parameter and b indicates the CB arrangement27). The h21 is equal to _______________ in common base arrangement? hrb hie hfb All of the above HintIn hfb, the f indicates the nature of the parameter and b indicates the CB arrangement28). The figure shown below is a hybrid equivalent for _________________ transistor circuit? Common collector Common emitter Common base None of the above HintThe Vbc is the input voltage and ic is the output current29). Which one of the following is a mathematical expression for voltage gain? Ai=i2/i1 Ri=V1/i1 Av=V2/V1 Ro=V2/i2 HintThe ratio of v2 divided by v1 is known as the voltage gain30). When current I1=0 then the Z parameter Z22 is equal to ratio of ________________? V2/I1 V1/I1 V2/I2 None of the above HintThe Z parameter Z22 is the open circuit output impedanceHybrid Parameters MCQs for Interviews31). Which one of the following is a driving point admittance equation? Z11(s)=V1(s)/I1(s) Y11(s)=I1(s)/V1(s) Both a and b None of the above HintThe admittance found at a given port is known as driven point admittance32). What is the meaning of the hybrid parameter h11? Input resistance Output conductance Reverse voltage gain Forward current gain HintThe condition for h11 hybrid parameter is they are output shorted33). Which one of the following equations is an open circuit output admittance? h11=V1/I1 h12=V1/V2 h21=I2/I1 h22=I2/V2 HintThe hybrid parameter h22 is an open circuit output admittance equation34). The figure shown below is a ________________ connection of two port network? Parallel Cascade Serial None of the above HintThe parameters Na and Nb are connected parallelly in the above figure35). Which one of the following is a mathematical expression for output resistance? Ai=i2/i1 Ri=V1/i1 Av=V2/V1 Ro=V2/i2 HintThe ratio of v2 divided by i2 is known as the output resistance36). The product of current gain and voltage gain is known as _______________ gain? Power Voltage Current None of the above HintThe Product of Av and Ai is known as power gain37). The figure shown below is a hybrid equivalent for _________________ transistor circuit? Common collector Common emitter Common base None of the above HintThe Vbc is the input voltage and ic is the output current38). The h22 is equal to _______________ in common emitter arrangement? hib hoe hic All of the above HintIn hoe, the o indicates the nature of parameter and e indicates the CE arrangement Read more about Common Emitter Amplifier39). How many ports does the below figure have? One Two Three Four HintThe pair of I1 is one port, if there is a pair of I2 then the network is said to be two-port network40). What is the meaning of the hybrid parameter h12? Input resistance Output conductance Reverse voltage gain Forward current gain HintThe condition for h12 hybrid parameters is they are input openHybrid Parameters Important MCQs for Exams41). Which one of the following equations in the below figure is a short circuit admittance parameter? Equation(1) Equation(2) Equation(3) Equation(4) HintThe admittance parameters are represented by letter y42). The current I1 along with voltage V2 are ______________ in hybrid parameters? Independent Dependent Either dependent or independent None of the above HintThe voltage V1 along with current I2 are dependent variables in hybrid parameters43). Whats the value of the h11 parameter for the below circuit? 10 ohms 20 ohms 15 ohms 30 ohms HintThe h11=v1/i1 when v2=0, the value of h11 parameter is 15 ohms44). What are the advantages of using hybrid parameters? Easy to measure Convertable Convenient to use All of the above HintThe hybrid parameters are easy to measure, convenient to use in circuit design and analysis and they are easily convertible from one to another configuration45). The figure shown below is a hybrid equivalent for _________________ transistor circuit? Common collector Common emitter Common base None of the above HintThe Vbc is the input voltage and ic is the output current46). The hybrid or h parameter of a transistor ________________ if a operating point changes? Changes Constant May or may not change None of the above HintThe h parameter will change if there is a change in transistor and operating point47). The h11 is equal to _______________ in common base arrangement? hib hie hic All of the above HintIn hib, i indicates the nature of the parameter and b indicates the CB arrangement48). The hybrid or h parameter of a transistor ________________ if a temperature changes? Changes Constant May or may not change None of the above HintThe h parameter will change if there is a change in transistor and operating point49). The voltage V1 along with current I2 are ______________ in hybrid parameters? Independent Dependent Either dependent or independent None of the above HintThe current I1 along with voltage V2 are independent variables in hybrid parameters50). The h21 is equal to _______________ in common emitter arrangement? hib hfe hic All of the above HintIn hfe, the f indicates the nature of the parameter and e indicates the CE arrangement Please fill in the comment box below. Time is Up! Time's up
