Question

In a step-up transformer, the turn ratio is 1 : 2. A Leclanche cell (e.m.f. 1.5V) is connected across the primary. The voltage developed in the secondary would be

• A. 0 V
• B. 3.4 V
• C. 4 V
• D. 2 V

Answer 1

The correct option is A 0 V

Leclanche cell works on direct current and thus gives out direct current. The ratio given here won't work since the transformers work on alternating current not on direct current. Thus the voltage developed in the secondary would be $0V$.