Question

What happens to the resistance of a circuit if current through it is doubled?

Answer 1

When the current is doubled the circuit becomes hot and the resistance increases.

Answer 2

$\mathbb{\red{\huge{ANSWER}}}</p><p>$

If you are doubling the current, either you are doing it by increasing the voltage or by decreasing the resistance or by a combination of both.

So the resistance will remain constant if current is doubled through doubling the voltage supply.

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