How much charge has been transferred from the negative to the positive terminal?

A 9.0V battery supplies a 2.5mA current to a circuit for 5.0hr.

a.) How much charge has been transferred from the negative tothe positive terminal?

b.) How much work has been done on the charges that passedthrough the battery?

Answer

A 9.0V battery supplies a 2.5mA current to a circuit for 5.0hr.

a.) How much charge has been transferred from the negative to the positive terminal?

b.) How much work has been done on the charges that passed through the battery?

a)
1 ampere= 1 coulomb/1 second
charge=current*time
=2.5mA*5*60*60
=2.5*10^-3*5*60*60
=45 Coulomb

b)
Work=V*i*t
=9*2.5*10^-3*5*60*60
=405 joules

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