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Ohms Law Question & Answers

January 31, 2022 By WatElectronics

This article lists 100 Ohms Law MCQs for engineering students. All the Ohms Law Questions and Answers given below include a hint and a 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 Ohms Law.

A law that defines the relationship between physical parameters in electronics such as current, voltage, and resistance is the ohms law. George Ohms a German scientist has experimented using glass tubes to find the value of current before discovering the ohms law.
Ohms is represented as a mathematical equation as ‘V=IR’ where ‘V’ stands for voltage, ‘I’ stands for current and ‘R’ stands for resistance.

This equation defines that whenever there is an increase in the value of resistance the value of voltage increases. In other words, ohms law is used for measuring the resistance value of the conducting component or a circuit. Ohms law is not applicable for semiconductor and insulating substances. Ohms law is used in DC ammeter, DC shunt devices and determining current in a current.

Ohm law benefit in terms of calculating voltage, current, and resistance of a circuit, they are used for power calculation, and voltage drop. They limit in terms of it does not apply for unilateral elements, VI is not constant for elements like capacitance and does not apply for nonlinear elements.

1). A Ohms law defines current flow through _____ substance?

Hint
2). Which of the following is the formula of ohms law?

Hint
3). In ohms law ____ is directly proportional to resistance?

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4). In ohms law ____ is indirectly proportional to resistance?

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5). Current is expressed in terms of ____ units?

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6). Voltage is expressed in terms of ____ units?

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7). Resistance is expressed in terms of ____ units?

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8). Which of the following scientist discovered ohms law?

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9). Which of the following is the symbol of ohms?

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10). Ohms defines ____ between any 2 points on conductor?

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11.) Ohms law is applicable to ___ types of circuits?

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12). In Ohms law current flows through _____ devices?

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13). Materials that act against ohms law is called ____?

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14). Which of the following components disagrees ohms law?

Hint

Read more about Diodes.

15). A non-ohmic condition is also called ____ condition?

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16). A ohmic condition is also called ____ condition?

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17). Which of the following parameters are non-ohmic?

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18). Which of the following is the formula for electromagnetic ohms law?

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19). A electromagnetic vector comprises of ____ number of components?

Hint

Read more about Ferro Magnet.

20). Electric resistivity is also called ____?

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21). Which of the following is the units of electric resistivity?

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22). Ohms law can be defined using ____ shape?

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23). Which of the following is the power formula of ohms law?

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24). A power triangle defines ____ parameters?

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25.) In formula I=P/V; increase in power _______ the current value?

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Ohms Law Interview Questions and Answers

26). In formula I=P/V; increase in power _______ the voltage value?

Hint
27). Which of the following is the formula for Energy E, power P and resistance R according to ohms law pie chart?

Hint
28). Which of the following is the formula for resistance with energy E and current I according to ohms law pie chart?

Hint
29). Which of the following is the formula for power with E and I according to ohms law pie chart?

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30). Which of the following is the formula for Energy E, power P and current I according to ohms law pie chart?

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31). Which of the following is the formula for Energy E, power P and resistance R according to ohms law pie chart?

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32). Which of the following is the formula for Resistance R, with Energy E, current I according to ohms law pie chart?

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33). Which of the following is the formula for Resistance R, with Energy E, power P according to ohms law pie chart?

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34). Which of the following is the formula for Resistance R, Energy E, power P according to ohms law pie chart?

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35). Which of the following is the formula for Power P, with Resistance R, current I according to ohms law pie chart?

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36). Which of the following is the formula for Power P, with Energy E, current I according to ohms law pie chart?

Hint
37). Which of the following is the formula for Current I, with Energy E, resistance R according to ohms law pie chart?

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38). Which of the following is the formula for Current I, with Energy E, Power P according to ohms law pie chart?

Hint
39). Which of the following is the formula for Current I, with resistance R, Power P according to ohms law pie chart?

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40). Power is expressed in terms of ____ units?

Hint
41). A law that defines the relationship between voltage, current, and resistance is called ___?

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42). Ohms law is a _____ law?

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43). Ohms law satisfies when physical parameters such as temperature is maintained at ____?

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44). At certain condition increase in current in ohms law ____ the value of temperature?

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45). In a bulb with filament on applying ohms law the value of current is ____ the temperature raise?

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46). Identify the value of current when voltage of battery is 3V and total resistance is 6 ohms?

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47). Identify the value of current when voltage of battery is 6V and total resistance is 6 ohms?

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48). Identify the value of current when voltage of battery is 9V and total resistance is 6 ohms?

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49). Identify the value of current when voltage of battery is 3V and total resistance is 12 ohms?

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50). Identify the value of current when voltage of battery is 6V and total resistance is 12 ohms?

Hint

Ohms Law MCQs for Exams

51). Identify the value of current when voltage of battery is 9V and total resistance is 12 ohms?

Hint
52). In water pipe based ohms law analogy the value of voltage is similar to?

Hint

Read more about Waterpipe.

53). Which of the following represents the value of current in water pipe based ohms law analogy?

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54). Which of the following represents the value of voltage in water pipe based ohms law analogy?

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55). Which of the following represents the value of resistance in water pipe based ohms law analogy?

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56). Which of the following are the components of ohms law experiments?

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57). Which of the following are the application of ohms law?

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58). Which of the following are limitations of ohms law?

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59). Ohms law is represented using ____ graph?

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60). Which of the following parameter is represented on X-axis of ohms law graph?

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61). Which of the following parameter is represented on Y-axis of ohms law graph?

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62). VI characteristics of ohms law is represented in ____ dimensions?

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63). Rate of flowing of charge is called ____ parameter?

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64). Which of the following is the formula of “Q”?

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65). When length “l”, area “A” and resistivity “p” is give the value of resistance is ____?

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66). In non ohmic conductor which of the following parameters are not proportional?

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67). Which of the following is the units of electric conductivity?

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68). The value of current ____ when potential difference is doubled and resistance if decreased to half?

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69). Ohms law is a universal law?

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70). A resistor comprises of _____ compositions?

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71). Which of the following are the properties of resistors?

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72). How many colors band are observed on a resistor?

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73). Which of the following band on resistor defines 1 st and 2 nd digits of resistor value?

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74). Which of the following band is multiplied while calculating resistor value?

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75). Which of the following band on resistor represents tolerance?

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Ohms Law Quiz Questions and Answers.

76). Which of the following is the first law of series circuits?

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77). Which of the following is the 2 nd law of series circuits?

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78). Which of the following is the 3 rd law of series circuits?

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79). Which of the following is the first law of parallel circuits?

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80). Which of the following is the 2 nd law of parallel circuits?

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81). Which of the following is the inverse of resistance?

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82). Which of the following is the 3 rd law of parallel circuits?

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83). A resistor has ____ number of terminals?

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84). A resistor is a ____ element?

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85). A thermistor is a ____ element?

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Read more about Thermistor.

86). In which of the following parameters resistors vary?

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87). Which of the following are the types of resistors?

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88). Which of the following are the properties of carbon resistor?

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89). Carbon based resistors are constructed using ____ material?

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90). Which of the following are the ranges of carbon based resistors?

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91). Which of the following is the disadvantage of a carbon resistor?

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92). A thermistor resistance depends on ____ parameter?

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93). Temperature is measured in terms of ____?

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94). A thermistor comprises of ____ value of temperature coefficient?

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95). In thermistor if temperature decreases the resistance value _____?

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96). In thermistor if temperature increases the resistance value _____?

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97). In a wire wound based resistor ____ are wounded around the insulating material?

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98). Which of the following materials have free electrons?

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99). ____ is the reason for voltage rise in a circuit?

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100). The length of wire should be ____ for sufficient flow of energy?

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