Electrical Engineering Questions And Answers :: Electromagnetic Induction: part1

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Electrical Engineering : Electromagnetic Induction QUESTIONS AND ANSWERS :: part1 : 6 to 10

Following Electrical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :

6.Both the number of turns and the core length of an inductive coil are doubled. Its self-inductance will be

unaffected
doubled
halved
quadrupled

7.If current in a conductor increases then according to Lenz's law self-induced voltage will

aid the increasing current
tend to decrease the amount of cur-rent
produce current opposite to the in-creasing current
aid the applied voltage

8.The law that the induced e.m.f. and current always oppose the cause producing them is due to

Faraday
Lenz
Newton
Coulomb

9.Air-core coils are practically free from

hysteresis losses
eddy current losses
both (a) and (b)
none of the above

10.Which of the following circuit element stores energy in the electromagnetic field ?

Inductance
Condenser
Variable resistor
Resistance

More Electromagnetic Induction QUESTIONS AND ANSWERS available in next pages

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