Answer Posted / v.sudhakar reddy
is a transformer, often with symmetrical windings, which is
used to decouple two circuits. An isolation transformer
allows an AC signal or power to be taken from one device
and fed into another without electrically connecting the
two circuits. Isolation transformers block transmission of
DC signals from one circuit to the other, but allow AC
signals to pass. They also block interference caused by
ground loops. Isolation transformers with electrostatic
shields are used for power supplies for sensitive equipment
such as computers or laboratory instruments.
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