Practice portal › Electric Potential and Capacitance › Capacitor Circuits and Energy

Find the equivalent capacitance between the two points A and B for the given figure (electric circuit). [Capacitance of each capacitor is C = 3 μF]

Asked in GUJCET 2021 · Series and parallel combinations

Figure: Series and parallel combinations
Answer: (3) 2 μF

Step-by-step solution

Given: three capacitors, each C = 3 μF: two in parallel between A and the middle junction, and the third between that junction and B.

Idea: parallel capacitances add; series ones combine as 1/(Cₛ) = 1/(C₁) + 1/(C₂).

Parallel pair: 3 + 3 = 6 μF.

In series with the third: (6×3)/(6+3) = (18)/9 = 2 μF.

So C_AB = 2 μF.

Why the other options are wrong

More Capacitor Circuits and Energy questionsAll Capacitor Circuits and Energy questions →

Reading this solution needs no sign-in. You only sign in to practise against the clock and keep your progress.

Practise this with a timer