Why the capacity of batteries are measured in #Ah# (Ampere hour) and not #A/h# (Ampere per hour) ?

Answer 1

Ampere-hour (Ah) measures the total charge a battery can deliver over one hour, providing a more practical representation of battery capacity. Ampere per hour (A/h) would imply a rate of flow, not the total charge capacity.

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Answer 2

Amelia Adams

Consider the meaning of the units: hour denotes time, and ampere denotes current.

#1Ah = 1A*1h#.

An equation which uses current and time is #I\Deltat=\DeltaQ#.

So, #1Ah# represents #3,600C# or how much charge is needed to move 1 ampere of current around a circuit for 1 hour.

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Answer from HIX Tutor

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.