Question

what is rheostat
.???​

Answer 1

ɦօʟa✍✍

Rheostat- It is a device does often used to change the resistance in electricity

Answer 2

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➡️Rheostat is an adjustable or variable resistor.

➡️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.