What is a magnetically operated device that can change values of voltage, current, and impedance without changing frequency?

A) a converter
B) an inverter
C) a transformer
D) a transistor

Magnetically Operated

Describes devices or mechanisms that are controlled or actuated through magnetic force or fields, often found in relays and circuit breakers.

Impedance

The combined effect of resistance, inductance, and capacitance on alternating current, expressed in ohms, which inhibits the flow of electricity in a circuit.

Transformer

An electric device that changes one value of AC voltage into another value of AC voltage.