Question

name the device to variate resistance in the circuit

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Answer 1

Answer:

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Explanation:

A variable resistance or potentiometer can be used to change the resistance of a circuit. They are used in experiments to measure current voltage or other parameters by multiple readings. Ohmmeter is for measuring a resistance but not changing it...

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Answer 2

A rheostat is used in an electrical circuit - Toppr A rheostat is a variable resistor which is used to control current. they are able to vary the resistance in circuit without interruption. the construction of a rheostat is very similar to potentiometer . Thus A rheostat is used in circuit to change the resistance of the circuit.

Explanation:

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