In the circuit shown, all capacitors are initially uncharged. The capacitance of the capacitors are `C_(1)=2muF` and `C_(2)=3muF` The switch is closed at position 1 and kept closed until the current in the ideal ammeter becomes negligible.
Which of the following statements is(are) true?

Options

A. The potential difference across `C_(1) is 18 V`
B. The charge on `C_(2) is 36muC`
C. The heat dissipated in the `1Omega` resistance is `540muJ`
D. Now if the switch is shifted to position 2, the initial current registered by the ammeter is 3A.

Answer

A, B, C, D

Explanation

(A) At steady state, potential difference across `C_(1)=((3)/(2+3))(30)=18V`
(B) Charge on `C_(2)=(30-18)(3)=36muC` .