In a circuit, 5C of charge is passed through a battery in 3 hours. The plates of the battery are maintained at the potential difference of 12 V. Then, the amount of work done by a battery is:

Q.

In a circuit, 10 C of charge is passed through a battery in a given time. The plates of the battery are maintained at a potential difference of 12 V. How much work is done by the battery?

Q. A parallel plate capacitor having capacitance 12 pF is charged by a battery to a potential difference of 10 V between its plates. The charging battery is now disconnected and a porcelain slab of dielectric constant 6.5 is slipped between the plates the work done by the capacitor on the slab is :

Q. If the amount of work done to transfer 60 coulombs of charge is 600 J, then the potential difference between two ends of battery is________.

Q. A capacitor having a capacitance of $100\mu F$ is charged to a potential difference of $24V$. The charging battery is disconnected and the capacitor is connected to another battery of emf $12V$ with the positive plate of the capacitor joined with the positive terminal of the battery. (a) Find the charges on the capacitor before and after the reconnection. (b) Find the charge flown through the $12V$ battery, (c) Is work done by the battery or is it done on the battery? Find its magnitude. (d) Find the decrease in electrostatic field energy. (e) Find the heat developed during the flow of charge after reconnection.

Q. A 12 V car battery can send a total charge of 84 A.h (ampere-hours) through a circuit, from one terminal to the other.
(a) How many coulombs of charge does this represent?
(b) How much work will be done by the battery to move this entire charge across the circuit?