Ratio of capacitance between A and B, before and after switch is closed is x. Find value of 50x

Find the capacitance between A and B

Find potential difference after switch, S is closed?

The ratio of equivalent resistance of the combined resistances when the switch is closed to switch is open is 8:x. Find value of x

The ratio of the equivalent resistance of the network (shown in figure) between the points a and b when switch is open and switch is closed is x: 8. The value of x is___________

Find potential difference before switch S is closed?

The ratio of currents passing through resistance R_1 as shown in the figure, before and after switch S is closed, is (The potentials at A and B remain unchanged)

Find charge supplied by the cell after the switch is closed.

In the circuit shown in the Figure find the equivalent capacitance between points a and b when– (a) Switch S is open. (b) Switch S is closed.