Question

Determine the charge on each capacitor if the combination is connected to a 80 V supply.​

Answer 1

Answer:

(a) For parallel combination, C

eq

=C

1

+C

2

+C

3

=(2+3+4)pF=9pF

(b) q=V×C

for parallel array, V remains the same across each capacitor.

for C=2 pF

q

1

=VC=100×2×10

−12

=2×10

−10

C

for C=3 pF

q

2

=VC=100×3×10

−12

=3×10

−10

C

for C=4 pF

q

1

=VC=100×4×10

−12

=4×10

−10

C

Answer 2

ANSWER

(a) For parallel combination, Ceq

=c² +C²+C³ =(2+3+4)pF=9pF

(b) q=V×C

for parallel array, V remains the same across each capacitor.

for C=2 pFq ¹

=VC=100×2×10-¹²

=2×10 -¹⁰

C for C=3 pFq²

=VC=100×3×10 -¹²

1. =3×10 -¹⁰C

for C=4 pFq¹

=VC=100×4×10 -¹²

=4×10-¹⁰ C