Physics, asked by arjunbadola70, 1 year ago

Equivalent capacitance between A and B is nC. Write n.​

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Answers

Answered by rajkumar707
12

Answer:

n = 4

Explanation:

I'll explain the trick here rather than total solution.

If you can re-draw the capacitance system in such a way that you'll be able to see than CD forms a wheatstone bridge like condition. Which means you can cut the capacitor between C & D, the reason being potentials of C & D will be same hence no charge will be there in the capacitor between them.

Once you cut that capacitor, things will be obvious

Equivalent capacitance about AB is

Ceq = 2C || (2C series with 2C) || (2C series with 2C)

(2C series with 2C) = 2C*2C/(2C+2C) = 1C

Ceq = 2C || 1C || 1C = 2+1+1 = 4C

Ceq = 4C

n = 4

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