If you double the current through a resistor, by what factor does the power dissipated by the resistor change?.

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23-06-2022
Physics

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If you double the current through a resistor, by what factor does the power dissipated by the resistor change?.

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sp10925 sp10925 · Answer 1 · 2022-06-25T01:05:28+02:00

If you double the current through a resistor, the power dissipated by the resistor change by factor of 4.

What is electric current?

The stream of positive charges which flow from the positive terminal to the negative terminal of the battery attached in a circuit.

Power dissipated through a resistor is related to current as

P =I²R

When the current is doubled, the new power will be

P' = (2I)²R

P' = 4 I²R

P' = 4P

Thus, the power change by the factor of 4.

Learn more about electric current.

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