Question

In the given figure, find the equivalent resistance between P and Q. If-

C₁ = C₃ = C₄ = C₅ = 4μF and C₂ = 10μF

Answer 1

Equivalent circuit of Question is shown in above figure.

Since C₁ = C₂ - C₃ - C₅ - 4μF

So Point a 'and b at same potential. It means there is no charge on C₂. Hence C₁ and C₅ is in series. So effective capacitance will be

Thus, C₄ and C₅. is in series, So

Now C'and C" is in parallel combination as shown in figure C.

∴ Equivalent capacitance will be-