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 A coil is wound on iron core which carries current I. The self-induced voltage in the coil is not affected by Variation in coil current The resistance of magnetic path Change of number of turns of coil Variation in voltage to the coil Variation in coil current The resistance of magnetic path Change of number of turns of coil Variation in voltage to the coil ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction If current in a conductor increases then according to Lenz's law self-induced voltage will Produce current opposite to the increasing current Aid the increasing current Tend to decrease the amount of current Aid the applied voltage Produce current opposite to the increasing current Aid the increasing current Tend to decrease the amount of current Aid the applied voltage ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction A coil with negligible resistance has 50V across it with 10 mA. The inductive reactance is 500 ohms 100 ohms 1000 ohms 5000 ohms 500 ohms 100 ohms 1000 ohms 5000 ohms ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction In case all the flux from the current in coil 1 links with coil 2, the coefficient of coupling will be 1.0 2.0 0.5 2.5 1.0 2.0 0.5 2.5 ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction Increasing the field or increasing the current will decrease the force on the conductor. Yes No Yes No ANSWER DOWNLOAD EXAMIANS APP
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