But in actual transformers, small energy losses do
occur due to the following reasons:
(i) Flux Leakage: There is always some flux leakage; that is, not all of
the flux due to primary passes through the secondary due to poor
Rationalised 2023-24
Physics
196
SUMMARY
1 An alternating voltage 
sin
=
ω
m
v
v
t  applied to a resistor R drives a
current i = im sinwt in the resistor, 
m
m
v
i
=R The current is in phase with
the applied voltage 2