Question

Find the voltage difference between two points when a battery does 10.0j of work on 4.0 x 10-2 c charge moving the charge between those two points

Answer 1

According to Joule's Law, we have the relationship between charge, voltage, and current:
W = Vq
where q is the charge
V is the voltage or the potential difference
W is the work done

From the given values and rearranging the equation:
V = 10J / 4.0x10^-2
V = 250 V

The voltage difference is 250 V