Electromagnetic induction Reversing the field or the current will reverse the force on the conductor. No Yes No Yes ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction The self inductances of two coils are 8 mH and 18 mH. If the coefficient of coupling is 0.5, the mutual inductance of the coils is 36 mH 12 mH 6 mH 18 mH 36 mH 12 mH 6 mH 18 mH ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction In an iron cored coil the iron core is removed so that the coil becomes an air cored coil. The inductance of the coil will Remains same Increases None of the listed here Decreases Remains same Increases None of the listed here Decreases ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction An open coil has Infinite resistance and zero inductance Zero resistance and high inductance Zero resistance and inductance Infinite resistance and normal inductance Infinite resistance and zero inductance Zero resistance and high inductance Zero resistance and inductance Infinite resistance and normal inductance ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction Both the number of turns and the core length of an inductive coil are doubled. Its self-inductance will be Doubled Halved Unaffected Quadrupled Doubled Halved Unaffected Quadrupled ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction Current changing from 8 A to 12 A in one second induced 20 volts in a coil. The value of inductance is 20 H 5 H 10 H 15 H 20 H 5 H 10 H 15 H ANSWER DOWNLOAD EXAMIANS APP
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