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Questions and Answers
What is the potential energy of a test charge q defined in terms of?
The work done on the charge q.
Why is the work done on the charge q obviously proportional to q?
Because the force at any point is qE, where E is the electric field at that point due to the given charge configuration.
Why is it convenient to divide the work by the amount of charge q?
So that the resulting quantity is independent of q.
What is characteristic of the electric field associated with the charge configuration?
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What is physically significant about the potential difference?
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What is the electrostatic potential V due to a given charge configuration characteristic of?
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What is the physically significant aspect of the potential difference?
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Why is it convenient to divide the work by the amount of charge q?
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What does the work done per unit test charge represent?
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What is the work done by an external force in bringing a unit positive charge from point R to P represented by?
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