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  4. Assertion: Charge on all the condensers connected in series is the same Reason: Capacitance of capacitor is directly proportional to charge on it

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Q. Assertion: Charge on all the condensers connected in series is the same
Reason : Capacitance of capacitor is directly proportional to charge on it

Electrostatic Potential and Capacitance

Solution:

Let two capacitors be connected in series. If $+q$ charge is installed on left plate of the first capacitor then $-q$ charge is induced on right plate of this capacitor. This charge comes from electron drawn from the left plate of second capacitor. Thus there will be equal charge $+q$ on the left plate of second capacitor and $- q$ charge induced on the right plate of second capacitor. Thus each capacitor has same charge $(q)$ when connected in series. Capacitance is quantity dependent on construction of capacitor and independent of charge