Electromagnetic induction Which of the following is unit of inductance? Ohm Hennry Weber/metre Ampere turns Ohm Hennry Weber/metre Ampere turns 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 24 mH 12 mH 48 mH 3 mH 24 mH 12 mH 48 mH 3 mH ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction Find the force acting on a conductor 3m long carrying a current of 50 amperes at right angles to a magnetic field having a flux density of 0.67 tesla 100 N 1000 N 300 N 400 N 100 N 1000 N 300 N 400 N 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 12 A/s 4 A/s 16 A/s 20 A/s 12 A/s 4 A/s 16 A/s ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction Two coils have inductances of 8 mH and 18 mH and a coefficient of coupling of 0.5. If the two coils are connected in series aiding, the total inductance will be 38 mH 36 mH 48 mH 30 mH 38 mH 36 mH 48 mH 30 mH ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction An average voltage of 10 V is induced in a 250 turns solenoid as a result of a change in flux which occurs in 0.5 second. The total flux change is 2 wb 0.2 wb 20 wb 0.02 wb 2 wb 0.2 wb 20 wb 0.02 wb ANSWER DOWNLOAD EXAMIANS APP
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