Find the electric charge Q1 on plates of capacitor C1, shown in

Subject

Physics

Class

ICSE Class 12

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20. Find the electric charge Q1 on plates of capacitor C1, shown in Figure 3 below:


Effective capacitance = C 

1 over straight C space equals space 1 over C subscript 1 space plus space 1 over C subscript 2 plus 1 over C subscript 3

space space space space space space equals 1 over 8 space plus space 1 over 16 plus 1 over 24

space space space space space space equals space fraction numerator 6 space plus space 3 space plus space 2 space over denominator 48 end fraction

C space equals space 48 over 11 mu F

P o t e n t i a l space d i f f e r e n c e comma space V space equals space 110 space V

C h a r g e comma space Q space equals space C V space

Q space equals space 48 over 11 x 10 to the power of negative 6 end exponent space x space 110 space equals space 480 space x space 10 to the power of negative 6 end exponent space equals space 48 space x space 10 to the power of negative 5 end exponent

Since the capacitors are in series each capacitor has same charge i.e., 48 x 10-5 C .
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