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Electric Circuit

What is the f...

Question

What is the function of rheostat in the circuit?

A

It limits the current

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B

It increases the current

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C

It makes the current constant in the circuit

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D

It increases the voltage

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Solution

The correct option is A It limits the current
A rheostat is a variable resistor. By changing the resistance you can control the current flowing through it. This can then be used to control downstream devices like transistors or lamps.

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