Electromagnetic induction A crack in the magnetic path of an inductor will result in Zero inductance Reduced inductance Unchanged inductance Increased inductance Zero inductance Reduced inductance Unchanged inductance Increased inductance 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 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? 0.1 s 0.2 s 0.5 s None of the listed here 0.1 s 0.2 s 0.5 s None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction Two 300 uH coils in series without mutual coupling have a total inductance of 1200 uH 300 uH 600 uH 900 uH 1200 uH 300 uH 600 uH 900 uH 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 24 mH 12 mH 3 mH 48 mH 24 mH 12 mH 3 mH 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