Question

The primary and the secondary coils of a transformer contain 10 and 100 turns, respectively. The primary coil is connected to a battery that supplies a constant voltage of 1.5 volts. the voltage across the secondary coil is 

(A) 1.5 V 

(B) 0.15 V 

(C) 0.0 V 

(D) 15 V

Answer 1

Correct Option :- (C) 0.0 V

Explanation :-

Since the voltage production is based upon A.C. supply and this voltage is D.C which is constant. Therefore, no flux will change in secondary and no voltage will be induced. Answer is (C) 0V.