High School Physics : Calculating Circuit Power

Study concepts, example questions & explanations for High School Physics

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考试ple Questions

考试ple Question #691 :High School Physics

What is the power of a circuit with a current ofand a resistance of?

可能的答案:

有限公司rrect answer:

Explanation:

The standard equation for power is:

We are given only current and reistance, meaning we must manipulate this equation so that only those variables are present. To do this, we can substitute Ohm's law for voltage.

Now we have an equation for power that uses only current and resistance. Plug in the values given in the question to find the final answer.

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