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astraxan [27]
4 years ago
14

A certain electric circuit obeys Ohm's law. If the voltage across the circuit and the resistance of the circuit are both doubled

, what will happen to the current through the circuit?
Physics
1 answer:
rusak2 [61]4 years ago
3 0

Answer:

Current remains constant

Explanation:

From Ohm's law we know that V=IR where V is voltage across the circuit, I is the current across circuit and R is resistance. Making I the subject of the formula then

I=\frac {V}{R}

When voltage and resistance are doubled then voltage will be 2V while resistance 2R hence

I=\frac {2V}{2R}=\frac {V}{R}

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