The loss of power in a transformer can be reduced by :

Options

A. Increasing the number of turns in primary
B. Using solid core made of steel
C. Increasing ac voltage applied to primary
D. Using a laminated core of soft iron.

Answer

D

Explanation

Due to the constantly changing magnetic field. There is a loss of current in the core. This current is known as eddy current. To reduce eddy current losses, we use a laminated core of soft iron.