Q. 82

# Consider the situ

Concepts/Formulas used:

Kirchhoff’s loop rule:

The sum of potential differences around a closed loop is zero.

Capacitance:

If two conductors have a potential difference V between the them and have charges Q and -Q respectively on them, then their capacitance is defined as Capacitors in series:

If capacitors C1, C2, C3 , … are in series, then the equivalent capacitance is given by: We can replace C1 and C2 by Ceq. As C1 ans C2 are in series, Let us drop the subscript and call Ceq just C.  Let the potential across the capacitor C be at time t be Vc. Let the charge at time t be q. Note that as C1 and C2 are in series, Applying Kirchhoff’s loop rule ,     We know that  Where B is a constant  Let  Substitute q = 0 at t = 0, Substituting the value of A back, where Rate this question :

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