# A charge of #4 C# is passing through points A and B on a circuit. If the charge's electric potential changes from #17 J# to #1 J#, what is the voltage between points A and B?

One joule of work is produced when one coulomb of charge is transferred through a one volt potential difference.

To move 4C through E volts, 17 - 1 = 16 J is needed.

This implies that a 4 V potential difference is required.

Or:

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The voltage between points A and B is 4 V.

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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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