Question

The effective capacitance between A and B is?​

Answer 1

the effective capacitance between A and B is (4) 3C

for series combination,

C eq = C1 * C2 / ( C1 + C2 )

For parallel combination,

C eq = C1 + C2

here, in the given attachment...

the potential difference across the C/2 capacitor is zero

therefore, it is not included in the circuit...

the other two capacitors having capacitance C and 2C are connected in parallel

thus, the effective capacitance between A and B is

C effective = C + 2C = 3 C

Answer 2

Explanation:

hope this will help you ☺️