Question

A cell phone battery uses chemistry to create a charge separation between the terminals (anode and cathode). What is the capacity of the battery?

1) q = 9500 c
2) q = 9500 mAh
3) q = 9500 A
4) q = 9500 V

Answer 1

The battery capacity refers to the amount of electric charge it can move, and it is correctly expressed in milliampere-hours (mAh); thus, the capacity is "q = 9500 mAh".

Step-by-step explanation:

The capacity of a cell phone battery is a measure of the energy it can supply over a given period. It is generally rated in Ampere-hours (Ah) or milliampere-hours (mAh), which are units that describe the amount of electric charge the battery can move.

Given the options provided, the correct answer for the battery capacity is "q = 9500 mAh". This measurement means that the battery can provide a current of 9500 milliamperes for one hour, or equivalently, it can move a charge of 9500 milliampere-hours across its terminals during this period. Neither 'coulombs' nor 'amperes' nor 'volts' are correct units for expressing a battery's capacity, according to the context of the question.