Question

The equivalant capacitance of the combination shown in figure below is

• A. $2C$
• B. $C$
• C. $\frac{1}{2}C$
• D. $None$

Answer 1

The correct option is D $None$

Since, the potential at point A is equal to the potential at point B, no current will flow along the arm AB. Hence, the capacitor on the arm AB will not contribute to the circuit. Also, because the remaining two capacitors are connected in parallel, the net capacitance of the circuit is given by

C_eq=C₁+C₂

C_eq=2C+C=3C

So, equivalent capacitance of above combination is 3C.

So, option (D) is correct.