Electromagnetic induction A 200 turn coil has an inductance of 12 mH. If the number of turns is increased to 400 turns, all other quantities (area, length etc.) remaining the same, the inductance will be 48 mH 12 mH 6 mH 24 mH 48 mH 12 mH 6 mH 24 mH ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction The polarity of the induced voltage can be determined by using the left-hand generator rule. No Yes No Yes 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 30 mH 48 mH 36 mH 38 mH 30 mH 48 mH 36 mH 38 mH ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction A coil with negligible resistance has 50V across it with 10 mA. The inductive reactance is 100 ohms 1000 ohms 5000 ohms 500 ohms 100 ohms 1000 ohms 5000 ohms 500 ohms 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 20 wb 0.2 wb 2 wb 0.02 wb 20 wb 0.2 wb 2 wb 0.02 wb ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic induction A coil induces 350 mV when the current changes at the rate of 1 A/s. The value of inductance is 250 mH None of the listed here 350 mH 3500 mH 250 mH None of the listed here 350 mH 3500 mH ANSWER DOWNLOAD EXAMIANS APP
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