Inductors - Technical MCQs

Q1:

If the primary of a 4:1 turns transformer dissipates 5 W, what is the secondary power?

A 5.0 W

B 1.25 pW

C 9.5 W

D 20.0 mW

ANS:A - 5.0 W

V1*I1=V2*I2
P1=P2