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Electrical Inductors Question & Answers

September 2, 2021 By Wat Electrical Leave a Comment

This article lists 100 Electrical Inductors MCQs for engineering students. All the Electrical Inductors Questions & Answers given below includes solution and link wherever possible to the relevant topic.

An inductor is a device that temporarily stores energy in the form of a magnetic field. The purpose of an inductor is to oppose any change in the magnitude of the current within a circuit. The inductance is the property of an inductor that opposes the change in current, if we take a wire or conductor and twisted it in a spiral manner then it is called an inductor.

1). In which field do inductors stores energy?

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2). What is the unit of inductance?

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3). The inductors are used in _________

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4). The power dissipated in an inductor is due to ______________

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5). In an inductor core, the energy loss is due to ____________

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6). In an inductors the losses occurs in ____________

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7). The coil in _____________ inductors is wounded on the bobbin

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8). The air core inductors have ____________ coils

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9). The coil in ____________ inductors is wounds on a toroid circular former

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10). The bobbin based inductors mostly used in ______________


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11). The multilayer inductors mainly used in ______________

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12). The flux leakage in toroidal core inductors is _______________

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13). In ____________inductors the core is absent completely

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14). The inductors are categorized into ___________

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15). The slug tuned inductors are ____________ inductors

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16). Which type of inductor is used for tuning circuits like radio?

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17). The tapped inductors are ______________ type of inductors

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18). _____________ resists changes in current

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19). In an inductor the current lags voltage by _____________

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20). An inductor is denoted by a letter _____________

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21). In an inductor the amount of inductance depends on _____________

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22). _____________ resists changes in voltage

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23). The iron core inductors are ___________ type of inductors

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24). The iron core coil inductance will decrease when _____________ is decreased

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25). The energy stored in an electromagnetic field decreases when ____________ decrease

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Electrical Inductors Important MCQs with Hints

26). ____________ inductor don’t saturate

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27). The ferrite core inductors are _____________ type of inductors

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28). Which one of the following inductors have a low stray magnetic field?

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29).The vendor comparison is more difficult in __________ inductor

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30). Which one of the following inductors has a low number of turns in the winding?

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31). __________ are the type of inductor cores

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32). The ferrite core inductors used in __________

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33). What is the value of one henry in terms of micro-henries?

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34). The ferrites are categorized into ____________

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35). What is the symbol of metal magnesium?

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36). The molded inductors molded by ____________

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37). What are the advantages of planar inductors?

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38). ____________ choke is used to bock the audio frequency

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39). What is the symbol of metal nickel?

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40). ____________ choke is used to bock the audio frequency

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41). The thin film inductor used in _______________

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42). An inductor is also called as _____________

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43). How many terminals does an inductor have?

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44). The inductance is the property of ___________

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45). The self-inductance of a coil depends on _______________

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46). What is the symbol of metal manganese?

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47). What is the value of one millihenry in terms of microhenries?

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48). ____________ choke is used to bock the radio frequency

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49). ____________ inductance is also called a back E.M.F

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50). Which one of the following contains less number of turns in a step-up transformer?

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Electrical Inductors for Interviews

51). In which one of the following transformers the thin wire is used to wind the primary coil?

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52). In which one of the following transformers the thick wire is used to wind the primary coil?

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53). In _____________ transformer the secondary coil contains less number of turns

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54). The magnetic flux is positive for ____________

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55). ___________ is defined as a ratio of total magnetic flux linkage by the current through coil

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56). The self-inductance doesn’t depend on _____________

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Read more about Self Inductance
57). What is the symbol of metal cobalt?

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58). The magnetic flux is zero for θ = ____________

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59). The magnetic flux is negative for ____________

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60). What is the value of one nano henry in terms of micro-henries?

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61). What is the unit of magnetic flux?

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62). What is the cgs unit of magnetic flux?

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63). Which one of the following is an induced emf expression?

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64). The induced emf of a generator can be increase by _____________

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65). The electromagnetic induction is used in _____________

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66). The size of an induced voltage increases when the _____________

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67). The ratio of magnetic flux divided by an area is known as ____________

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68). What is the symbol of metal chromium?

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69). Which one of the following is measured in tesla?

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70). In a magnetic field, the force on a current conductor is given by _____________

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71). In a magnetic field, the force on a single moving charge is given by _____________

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72).The direction of an induced current depends on the direction of ___________

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73). The magnitude of an induced current depends on ______________

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74).An induction is discovered by Michael Faraday in __________

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75). What is the standard form of E.M.F?

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Electrical Inductors Exam Questions and Answers

76). The tolerance is categorized into _____________

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77). The average induced voltage for an inductor is defined by ___________

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78). The magnetomotive force measured in ____________

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79). ______________ is the unit of true power

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80). What is the symbol of metal zinc?

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81). ______________ is the unit of reactive power

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82). The quality factor of a coil is defined as a ratio of ______________

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83). What is the S.I unit of resistance?

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84). What is the S.I unit of resistivity?

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85). The inductor impedance is given by ____________

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86). Which one of the following is the correct formula for the time constant?

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87).The inductance value expressed in ____________

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88). What is the standard form of M.M.F?

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89). The magnitude of the field defined by a ______________

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90). For a coil of N turns the magnetomotive force is given by _____________

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91). For a coil of N turns the field strength is given by _____________

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92). Which one of the following dissipates energy?

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93). What is the symbol of power?

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94). What is the unit of energy?

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95). In an inductor motor crawling is caused by ___________

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Read more about Inductors
96). The squirrel cage induction motor power factor is low at ___________

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97). The squirrel cage rotor resistance is ____________

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98). In an induction motors the DC excitation is ___________

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99). In motors the crawling is solved by _____________

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100). What is the symbol of energy?

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