Answer Posted / amit singh
A transformer is a device that transfers electrical energy
from one circuit to another through inductively coupled
conductors ,the transformer's coils. A varying current in
the first or primary winding creates a varying magnetic
field through the secondary winding. This varying magnetic
field induces a varying electromotive force (EMF) or
"voltage" in the "secondary" winding. This effect is called
mutual induction.
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