Electrostatics Ques 108

  1. In the given circuit, a charge of $+80 \mu \mathrm{C}+80 \mu \mathrm{C}$ o is given to the upper plate of the $4 \mu \mathrm{F}$ capacitor. Then in the steady state, the charge on the upper plate of the $3 \mu \mathrm{F}$ capacitor is

(2012)

(a) $+32 \mu \mathrm{C}$

(b) $+40 \mu \mathrm{C}$

(c) $+48 \mu \mathrm{C}$

(d) $+80 \mu \mathrm{C}$

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Answer:

Correct Answer: 108.(c)

Solution:

Formula:

Distribution of Charges on Connecting Two Charged Capacitors:

  1. Between $3 \mu \mathrm{F}$ and $2 \mu \mathrm{F}$ (in parallel), total charge of $80 \mu \mathrm{C}$ will distribute in direct ratio of capacity.



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