2 conducting objects one with charge of +Q and another with -Q are kept on x-axis at `x=-3` and `x -+4` respectively. The electric field on the x - axis is given by `3Q(x^(2)+4/3)` What is the capacitance C of this configuration of objects. Fill `1/C` (in `F^(-1))` in OMR sheet.

Answer

`119`

Explanation

Just after closing switch no current flows through `R_(2)` so `I_(1) = 3` mA
Long time after closing switch no current flows through C so `I_(2)=2` mA
Directly after re-opening the switch no current flows through `R_(1)` and the capacitor will discharge through `R_(2)` so `I_(3)=2` mA