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PHYSICS

JAMB 2015 - Question 22

Physics 2015 JAMB Past Questions - Question 22: a car battery rated 45H is charged with a charger whose rating is 2.5 how long will it take to charge the battery fully

Choose the correct answers from the options given.

a car battery rated 45H is charged with a charger whose rating is 2.5 how long will it take to charge the battery fully

A: 20hrs

B: 10hrs

C: 25hrs

D: 18hrs

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Correct Answer

Explanation

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