SAT II Physics : Electric Potential Energy

Study concepts, example questions & explanations for SAT II Physics

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Example Questions

Example Question #5 : Electricity And Magnetism

On which of the following does the amount of work required to move a charge in an electric field depend?

Possible Answers:

Only the path traveled

Neither the potential nor the path traveled

Only the magnetic field

Only the change in potential

Both the potential and the path traveled

Correct answer:

Only the change in potential

Explanation:

Work done by electric field is defined:

Notice that the only variable in the equation is the potential, so this is the only quantity on which work depends.

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