Decide whether each of these statements is True (T) or False
A 20 μF capacitor is charged from a 10 V supply and then an uncharged 10 μF capacitor is connected in
Parallel with it.
(i) The combined capacitance is 30 μF.
(ii) The potential difference across the connected pair becomes 6.7 V.
A) (i) T (ii) T
B) (i) T (ii) F
C) (i) F (ii) T
D) (i) F (ii) F

Question

Quizplus · Accepted Answer

(i) When capacitors are connected in parallel, their capacitances add up, so the combined capacitance is 30 μF. (ii) The charge is conserved, and the final voltage across the capacitors is calculated using the formula Q = CV. Initially, Q = 20 μF * 10 V = 200 μC. After connection, V = Q / (C1 + C2) = 200 μC / 30 μF = 6.7 V.

Decide Whether Each of These Statements Is True (T) or False