Question

Which among the following is true about transformers?

(a) Transformers are used to convert low alternating voltage to a high alternating voltage

(b) Transformers are used to convert low alternating current to a high alternating current

(c) Transformers are based on the phenomena of mutual electric field

(d) Transformers are used only for low alternating voltage

This question was addressed to me in an online interview.

This intriguing question comes from Alternating Current in division Alternating Current of Physics – Class 12

Answer 1

Right answer is (a) Transformers are used to convert low alternating voltage to a high alternating voltage

Best explanation: Transformers are used to convert low alternating voltage to a high alternating voltage and vice versa. Transformers are based on the phenomena of mutual induction. A transformer consists of a soft iron coil with two coils wound around it which are not connected to one another. The other statements are not valid.