Electronics Engineering
Physics
Electricity and Magnetism

When to use a rheostat?

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Wiki User
10/08/2007

Depending on the situation. The purpose of the rheostat is use to change the resistance of the circuit.

The rheostat is use to define Ohm Laws

the 2nd situation is use to find out what the fixed resistor's resistance.

3rd purpose : used to control the resistance of circuit.

eg Radio