Answer to Question #310187 in Electricity and Magnetism for vincent

Question

Find the magnitude of the charge if it has a Voltage of 13 V with a distance of 25 mm.

Answer 1

$V=\frac{kq}{r}$

$q=\frac{Vr}{k}$

$q=\frac{13\times25\times10^{-3}}{9\times10^9}=3.61\times10^{-11}C$