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Question
Three capacitors C1 = 3μF, C2 = 6μF, and C3 = 10μF are connected to a 50 V battery as shown in Figure below:
Calculate:
(i) The equivalent capacitance of the circuit between points A and B.
(ii) The charge on C1.
Solution
C1 = 3μF, C2 = 6μF, and C3 = 10μF
if V' be in equivalent capacitance between C1 and C2 then
`1/(C')=1/(C_1)+1/(C_2)`
=`1/3+1/6=3/6=1/2`
C' = 2πF
Now, CEq = C' +C3 = 2 +10
CEq = 12πF
(i) Eq, capacitance between A and B = 12πF
(ii) Charge at C1 = 2 ×10-6 × 50 C = 10- 4 C
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