question_answer

Effective capacitance between A and B in the figure shown is (all capacitance are in mF)                                 [KCET 2004]

A)                    21 mF

B)                    23 mF

C)                    \[\frac{3}{14}\mu F\]

D)                    \[\frac{14}{3}\mu F\]

Correct Answer: D

Solution :

                   Given circuit is balanced Whetstone bridge. So capacitor of 2mF can be dropped from the circuit Þ \[{{C}_{AB}}=2+\frac{8}{3}=\frac{14}{3}\mu F\]