Question

a current of 5A is flowing at 220V in the primary transformer. if the voltage produced in the secondary coil is 2200V and 50% power is lost, then current in secondary transformer will be

(1)0.25A
(2)0.5A
(3)2.5A
(4)5A​

Answer 1

Answer:

Vp=220V,

Vs=2200V,

Ip=5A,

Is=?

Power loss = 50% Efficiency of transformer (η)

is defined as the ratio of output power and input power ie,

η50=. ( 2200 × Is / 220 × 5 ) × 100Is

Is = 0.25 A

hope it will help you.....

Answer 2

Answer:

option (1) is correct..........

0.25A