Question

Four capacitors of capacitance `C`, `2C`, `3C` & `4C` respectively are connected as shown in figure. Battery is deal and all the connected wires have no resistance capcitance or inductance. Initially the switch `S` is open. If at `t=0` switch `S` is closed
The charge flown through connector `AB` after switch is closed is

A. `CE`
B. `(CE)/(2)`
C. `(CE)/(5)`
D. `(CE)/(3)`

Answer 1

Initial and final charges on capacitors are shown in figure (`a`) and (`b`) respectively charge flown through `AB` is `(CE)/(5)` work done by battery
`=W_(b)=(Q_(take)-Q_(take))E`
Heat produced `=W_(b)-DeltaU=(CE^(2))/(105)J`