# A charge of #15 C# is passing through points A and B on a circuit. If the charge's electric potential changes from #24 J# to #12 J#, what is the voltage between points A and B?

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The voltage between points A and B is 12 volts.

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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.

- How much power is produced if a voltage of #12 V# is applied to a circuit with a resistance of #288 Omega#?
- A positive charge +q is brought closer to a negative charge -Q. As the charge +q gets closer ti the charge -Q, will the electric potential energy increase or decrease?
- A charge of #8 C# is passing through points A and B on a circuit. If the charge's electric potential changes from #32 J# to #12 J#, what is the voltage between points A and B?
- A circuit with a resistance of #6 Omega# has a fuse melts at #6 A#. Can a voltage of #48 V# be applied to the circuit without blowing the fuse?
- Why the capacity of batteries are measured in #Ah# (Ampere hour) and not #A/h# (Ampere per hour) ?

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