Determine the number of coulombs of charge produced by a 12-A battery charger in an hour.
Given that current I = 12A
Time t = 1 hour
= 60min
= 3600sec
Charge Q = ?
We know that I= Q/t
Q = I*t
= 12*3600
= 43200C
Therefore the charge produced by a 12V battery in an hour is 43200C.