Three capacitors each of capacitance $9 ext{ pF}$ are connected in series to a $120 ext{ V}$ suppl

Question

Three capacitors each of capacitance $9	ext{ pF}$ are connected in series to a $120	ext{ V}$ supply. What is the potential difference across each capacitor?

Professor PC Thomas Classes · Answer

Since the capacitors are identical and connected in series, the total voltage of $120	ext{ V}$ will divide equally among them. Voltage across each = $120	ext{ V} / 3 = 40	ext{ V}$.