Question

The turn ratio in a step up transformer is 1 : 2 if a Lechlanche cell of 1.5 V is connected across the input, then the voltage across the output will be 

(a) 0.1 V 

(b) 1.5 V 

(c) 0.75 V 

(d) zero

Answer 1

Correct option: (d) zero

Explanation:

A transformer cannot step up a d.c. input so output potential here will be zero. No potential will be induced in the secondary coil.