A car battery rated 45 A H is charged with a ch... - JAMB Physics 2005 Question
A car battery rated 45 A H is charged with a charger whose rating is 2.5A.How long will it take to charge the battery full?
A
10 hrs
B
18 hrs
C
20 hrs
D
25 hrs
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Correct Option: B
For a car battery rated 45 AH, being charged by a charger of 2.5 A rating, the time for the battery to be fully charged is given by:
T = (45)/2.5 = 18 hrs
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