Answer to Question #304280 in Electric Circuits for Eymon

Question

Switch S is closed to connect the uncharged capacitor of capacitance C=0.25mf to the battery of potential difference V=12V. The lower capacitor plate has thickness L= 0.5cm and face area A= 2*10–⁴, and it consist of copper, in which the density of conduction electrons is n= 8.49*10²⁸electrons/m³. From what depth d the plate must electrons move to the plate face as the capacitor becomes charged? a. A battery and capacitor circuit.

b. The lower capacitor plate

Answer 1

Q$=CV$

$\frac{Q}{e}=$ Number of electrons

$=\frac{CV}{e}$

Volume $=Ad$