The equivalent capacitance between points `X and Y` in Fig. 4.182. is`
.

Options

A. `6//5 muF`
B. `4muF`
C. `(18)/5muF`
D. none of these

Answer

C

Explanation

Equivalent circuit may be follows:
.
As the structure is balanced Wheatstone bridge, So `5 muF` capacitor will draw no charge from battery and may be removed. Now the circuit is a simple circuit.
`C_(eq)=(4xx6)/((6+4))+(3xx2)/((3+2))=(18)/5 muF`.