Question Detail
Question
A car battery is rated at 80 A-h. An ampere-hour is a unit of:
Correct Answer
Option D is the correct answer.
Detailed Explanation
1 A-h = 1 ampere × 1 hour = 1 C/s × 3600s = 3600 coulombs. So, it's a unit of charge.
Hint
Recall the definition of current: I = Q/t.