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Questions  

Four plates of equal areas  A are separated by equal distances d  and are arranged as shown in the figure. The equivalent capacity is

a
2∈0Ad
b
4∈0Ad
c
3∈0Ad
d
∈0Ad

detailed solution

Correct option is A

The given circuit is equivalent to a parallel combination two identical capacitors Hence equivalent capacitance between A  and B  is                                                                   C=∈0Ad+∈0Ad =2∈0Ad.

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