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Got it. Thank you.

Then why do you say that 9V x 0.12Ah = 1.08 Joules is way too small?

I was wondering if 9V should be multiplied by 120 mAh or 0.120 Ah, so the correct answer then should be 9 x 120 mAh?

Homework Statement How much energy (in Joule units) is in a kilowatt-hour? Homework Equations The Attempt at a Solution

Homework Statement Calculate the electrical energy (in Joules units) which is stored in a battery with nominal voltage, 9v, and with a charge capacity of 120 mAh. Homework Equations J (Electrical Energy) = V (Voltage) x Ah (battery capacity) The Attempt at a Solution J = V x Ah...