Question

The charge stored on each plate of a capacitor is 120 uC when it is connected to a source with a potential difference of 6.0 V. What is the potential difference across the capacitor if the charge on each plate is 64uC?

Answer 1

$C=q/V=120\cdot10^{-6}/6=20\cdot10^{-6}\ (F)$

$V=q/C=64\cdot10^{-6}/20\cdot10^{-6}=3.2\ (V)$ . Answer