A) high current at low voltage to small current at high voltage
B) large current at low voltage to high current at high voltage
C) small current at high voltage to small current at low voltage
D) large current at high voltage to small current at low voltage
Correct Answer: B
Solution :
A transformer is an electrical device that transfers energy from one circuit to another by magnetic coupling with no moving parts. An alternating current in one winding creates a time-varying magnetic flux in the core, which induces a voltage in the other windings. Transformer are used to convert between high and low voltage, to change impedance and to provide electrical isolation between circuits.
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