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25 June, 02:17

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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Answers (1)
  1. 25 June, 03:22
    0
    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
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