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 An e.m.f. of 16 volts is induced in a coil of inductance 4H. The rate of change of current must be 20 A/s 16 A/s 12 A/s 4 A/s 20 A/s 16 A/s 12 A/s 4 A/s ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction The core of a coil has a length of 200 mm. The inductance of coil is 6 mH. If the core length is doubled, all other quantities, remaining the same, the inductance will be 48 mH 12 mH 3 mH 24 mH 48 mH 12 mH 3 mH 24 mH 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 Capacitance Series aiding inductance Mutual inductance Self-inductance Capacitance Series aiding inductance Mutual inductance Self-inductance ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction A coil with negligible resistance has 50V across it with 10 mA. The inductive reactance is 5000 ohms 1000 ohms 500 ohms 100 ohms 5000 ohms 1000 ohms 500 ohms 100 ohms ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction A conductor carries 125 amperes of current under 60° to a magnetic field of 1.1 tesla. The force on the conductor will be nearly 120 N 60 N 30 N 90 N 120 N 60 N 30 N 90 N ANSWER DOWNLOAD EXAMIANS APP
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