Electromagnetic induction Two coils have self-inductances of 10 H and 2 H, the mutual inductance being zero. If the two coils are connected in series, the total inductance will be 9 H 12 H 6 H 10 H 9 H 12 H 6 H 10 H ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction A coil is wound on iron core which carries current I. The self-induced voltage in the coil is not affected by Change of number of turns of coil The resistance of magnetic path Variation in voltage to the coil Variation in coil current Change of number of turns of coil The resistance of magnetic path Variation in voltage to the coil Variation in coil current 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 15 H 20 H 10 H 5 H 15 H 20 H 10 H 5 H 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 12 mH 36 mH 6 mH 18 mH 12 mH 36 mH 6 mH 18 mH ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction An open coil has Infinite resistance and normal inductance Zero resistance and inductance Zero resistance and high inductance Infinite resistance and zero inductance Infinite resistance and normal inductance Zero resistance and inductance Zero resistance and high inductance Infinite resistance and zero inductance ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction Increasing the field or increasing the current will decrease the force on the conductor. No Yes No Yes ANSWER DOWNLOAD EXAMIANS APP
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