Three capacitors of capacitances 2 pF, 3 pF and 4 pF are connected in parallel. (1) What is the total capacitance of the combination? (2) Determine the charge on each capacitor if the combination is connected to a 100 V supply.
(a) For parallel combination, Ceq=C1+C2+C3=(2+3+4)pF=9pF (b) q=V×C for parallel array, V remains the same across each capacitor. for C=2 pF q1=VC=100×2×10−12=2×10−10C for C=3 pF q2=VC=100×3×10−12=3×10−10C for C=4 pF q1=VC=100×4×10−12=4×10−10C
