If you double the voltage in a circuit and reduce the resistance by a factor of four, what will happen to the current?

OA

It will double.

B.

It will decrease by a factor of 2.

C.

It will increase by a factor of 8.

D.

It will decrease by a factor of 8.

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Question

Carla Marsh

Physics

30 December, 08:24

If you double the voltage in a circuit and reduce the resistance by a factor of four, what will happen to the current?

OA

It will double.

B.

It will decrease by a factor of 2.

C.

It will increase by a factor of 8.

D.

It will decrease by a factor of 8.

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+3

Answers (1)

Know the Answer?

Elwood · Answer 1

It will increase by a factor of 8.

Explanation:

By Ohm's Law, we can relate current, voltage and resistance. It is expressed as V=IR. That is, there is a direct relationship between voltage and resistance and voltage and current.

V = IR

V1/2V1 = I1R1 / I2R1/4

1/2 = 4I1/I2

I2 = 8I1

If you double the voltage in a circuit and reduce the resistance by a factor of four, what will happen to the current?OAIt will double.B.It will decrease by a factor of 2.C.It will increase by a factor of 8.D.It will decrease by a factor of 8.ResetNext

If you double the voltage in a circuit and reduce the resistance by a factor of four, what will happen to the current?

OA

It will double.

B.

It will decrease by a factor of 2.

C.

It will increase by a factor of 8.

D.

It will decrease by a factor of 8.

Reset

Next