In the circuit shown, initially there is no charge on capacitors and keys  $S_{1}and{S}_2$  are open. The values of the capacitors are  $C_1=10\mu F,C_2=30\mu Fand{C}_3=C_4=80\mu F$

 
Which of the statement(s) is/are correct?

At time $t=0,$  the key  $S_1$  is closed, the instantaneous current in the closed circuit will be  25mA.

The key  $S_1$  is kept closed for long time such that capacitors are fully charged. Now key  $S_2$ is kept closed, at this time, the instantaneous current across  $30\Omega$  resistor (between points P and Q) will be 0.2A (round off to 1st decimal place).

If key $S_1$  is kept closed for long time such that capacitors are fully charged, the voltage across the capacitor  $C_1$ will be 4V.

If key  $S_1$ is kept closed for long time such that capacitors are fully charged, the voltage difference between points P and Q will be 10V.