Question

What is a Rheostat? Give it's one usage.

Answer 1

Rheostat is a device made up of standard resistance wires like Constanta and Manganin used to increase or decrease the resistance in a circuit. They are used to decrease current in a circuit, for example on dimming bulbs, etc.

They are denoted by '/\/\/\/\' symbol.

Hope it helps ^_^

Answer 2

Hello !!

RHEOSTAT :

》A rheostat is a variable resistor.

》By changing the resistance you can control the current flowing through it.

USES:

》This can then be used to control downstream devices like transistors or lamps.

Hope it helps..!!