Question

a certain 12V storage battery used at 80Ah (a)how many coulombs of charge can this battery deliver? (b) how much energy is stored in it?

Answer 1

we know that 1 Ah = 3600 C

or 80 Ah = 80X3600 = 2.88 x 10⁵ C

so, the amount of charge flowing per hour would be 2.88 x 10⁵ C.

electrical energy is given as

W = V/q = 12 / 2.88 x 10⁵

or

W = 4.16 x 10⁵ J