Electromagnetic induction The self-inductance of the coil may be defined as equal to the e.m.f. induced in volts when the current in the circuit changes at the rate of unit Weber turns. Yes No Yes No ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction The inductance of a coil will increase under all the following conditions except When the number of turns of the coil increase When more length for the same number of turns is provided When more area for each turn is provided When permeability of the core increases When the number of turns of the coil increase When more length for the same number of turns is provided When more area for each turn is provided When permeability of the core increases ANSWER DOWNLOAD EXAMIANS APP
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 Change of number of turns of coil Variation in coil current Variation in voltage to the coil The resistance of magnetic path Change of number of turns of coil Variation in coil current Variation in voltage to the coil The resistance of magnetic path ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction A conductor 2 meters long moves at right angles to a magnetic field of flux density 1 tesla with a velocity of 12.5 m/s. The induced e.m.f. in the conductor will be 12 V 15 V 10 V 25 V 12 V 15 V 10 V 25 V ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction The property of coil by which a counter e.m.f. is induced in it when the current through the coil changes is known as Series aiding inductance Mutual inductance Self-inductance Capacitance Series aiding inductance Mutual inductance Self-inductance Capacitance ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS