Chapter 25, Problem 1Q

What quantity is measured by a battery rating given in ampere-hours (A·h)?

To determine

The quantity measured by a battery rating in $\text{ampere-hour}$.

Answer to Problem 1Q

The battery rating in $\text{ampere-hour}$ gives the total amount of charge.

Explanation of Solution

An ampere hour is the amount of charge available in a battery that will allow one ampere of current to flow for one hour. An ampere is a unit of measure of the rate of electron flow in an electrical conductor.

Since ampere hour is a unit of charge.

Conclusion:

The amount of charge in a battery is,

  $\begin{array}{c}\text{A}=\left(1.00\text{A}\cdot \text{h}\right)\left(\frac{1\text{C/s}}{1\text{A}}\right)\left(\frac{3600\text{s}}{1\text{h}}\right)\\ =3600\text{C}\end{array}$

Therefore, the battery rating in $\text{ampere-hour}$ gives the total amount of charge.