Question

A rheostat is used
(A)to bring on A known change of resistance in the circuit to alter the current
(B) to continuously change the resistance in any arbitrary manner and there by alter the current
(C)to.make and break the circuit at any instant
(D)neither to alter the resistance nor the current​

Answer 1

Answer:

it is option b) to continuously change the resistance in any arbitrary manner and there by alter the current

Answer 2

Answer:

(B) To continuously change the resistance in any arbitrary manner and there by alter the current

Explanation:

1. 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.

2. A rheostat is used in the circuit to change the amount of current flowing in the circuit by either increasing or decreasing the resistance.

3. A rheostat is an electric device of variable resistance which is basically used to control the resistance of the circuit to change the current.

For more refers to-

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