A(n) _____ is an electric switch which allows a small amount of current to control a much larger one.

Question

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A relay is an electric switch that uses a small current to control a larger current, often used in circuits where a low-power signal controls a high-power device. A rheostat is a variable resistor used to control current in a circuit, a solenoid is a coil of wire used to create a magnetic field, and a conductor is a material that allows electrical current to flow through it.

A(n) _____ Is an Electric Switch Which Allows a Small