In the given circult , a charge of + `89 mu C ` is given to upper plate of a ` 4 mu F` capacitor . At steady state , the charge on the upper plate of the `3 mu F ` capacitor is

Options

A. `60 mu C `
B. `48 mu C `
C. `80 mu C `
D. `0 mu C`

Answer

B

Explanation

The net charge on upper plates both capacitor `( 2 mu F and 3 mu F )` will be + `80 mu C ` , so charge on upper plate of `3 mu C ` capacitor will be
` q= ((3)/( (3+2))) (80 mu C)`
` q=(3)/(5) xx80 =48 mu C `