Question

Use of rheostat in a circuit?

Answer 1

Explanation:

Rheostat is an adjustable or variable resistor.

It is used to control the electrical resistance of a circuit without interrupting the flow of current. Rheostat has 3 terminals and usually consist of a resistive wire wrapped to form a toroid coil with a wiper that slides along the surface of the coil.

Answer 2

Answer:

It is used to change current in the circuit ...It is also called variable resistance.