Capacitors and are connected in series between terminals P and Q

PHYSICS · Subjective · CBSE · Physics · Electrostatic Potential and Capacitance · Electrostatic Potential and Capacitance

Problem

Capacitors

C_1 = 2.0\,\mu\text{F}

and

C_2 = 6.0\,\mu\text{F}

are connected in series between terminals P and Q. A third capacitor

C_3 = 3.0\,\mu\text{F}

can be connected in parallel with

C_2

by closing a switch S. Determine the equivalent capacitance between P and Q (a) when S is open and (b) when S is closed.