physics - please hellp

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I need help with two questions:

1) An object can only have a charge that is an integral multiple of the charge on the ___.

Am I correct with "electron" as the answer? or possibly elementary charge?

2) The difference in potential between any two points in a field is the ___ required to move a unit of whatever is affected by the field between the two points.

Is "work" a possibility? Is "energy" better?

  • physics - please hellp -

    electron.
    work; or energy both are correct.

  • physics - please hellp -

    1. yes, electron

    2. work is what you mean

    in a potential field the work done to move from point A to point B is equal to the change in potential energy

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