Answer Posted / ranjit singh

when the e.m.f. is induced in the winding ,then this e.m.f.
also induced in core of the transformer because winding is
put on the core and core is a magnetic material and due to
e.m.f. current flow in the core and heat is produced inthe
core ,

it is known as eddy current losses.
SKIN EFFECT -:DUE TO THIS EFFECT current is flow over the
surface of the conducter

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