Question

What is a rheostat? ​

Answer 1

Answer:

an electrical instrument used to control a current by varying the resistance.

Explanation:

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Answer 2

Answer:

Rheostat, adjustable resistor used in applications that require the adjustment of current or the varying of resistance in an electric circuit. The rheostat can adjust generator characteristics, dim lights, and start or control the speed of motors.

Explanation:

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