Question

Complete the following sentences :

(i) In a step-up transformer, the number of turns in the primary is________________ then the number of turns in the secondary.

(ii) The transformer is used in ___________ current circuits.

(iii) In a tranformer, the frequency of a.c. voltage _____________ (increase/decreases/remains same)

Answer 1

1. In a step-up transformer, the number of turns in the primary is less than the number of turns in the secondary.
2. The transformer is used in alternating current circuits.
3. In a transformer, the frequency of A.C. voltage remains same.