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 Self-inductance Mutual inductance Capacitance Series aiding inductance Self-inductance Mutual inductance Capacitance Series aiding inductance ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction A 500 turns solenoid develops an average induced voltage of 60 V. Over what time interval must a flux change of 0.06 Wb occur to produce such a voltage? 0.2 s 0.1 s 0.5 s None of the listed here 0.2 s 0.1 s 0.5 s None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction Higher the self-inductance of a coil, Lesser its weber-turns Lower the e.m.f. induced Greater the flux produced by it Longer the delay in establishing steady current through it Lesser its weber-turns Lower the e.m.f. induced Greater the flux produced by it Longer the delay in establishing steady current through it ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction A coil with negligible resistance has 50V across it with 10 mA. The inductive reactance is 1000 ohms 100 ohms 500 ohms 5000 ohms 1000 ohms 100 ohms 500 ohms 5000 ohms 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 3 mH 24 mH 28 mH 12 mH 3 mH 24 mH 28 mH 12 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 Increases Remains same None of the listed here Decreases Increases Remains same None of the listed here Decreases ANSWER DOWNLOAD EXAMIANS APP
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