Question

Consider a 2-winding transformer as below. If the switch is open then the emf induced across the secondary having transformation ratio of 2 is?

(a) zero

(b) V1

(c) V1/2

(d) 2*V1

This question was posed to me in a national level competition.

I would like to ask this question from Ideal Two Winding Transformer in portion Transformers of Electrical Machines

Answer 1

The correct choice is (d) 2*V1

To explain I would say: V2/V1 = 2

             S, V2 = 2*V1.