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The expression for the equivalent capaci...

The expression for the equivalent capacitance of the system shown in Fig. is (A is the corss-sectional area of one of the planes) :

A

`varepsilon_(0)A//3d`

B

`(3varepsilon_(0)A)/(d)`

C

`varepsilon_(0)A//6d`

D

none of the above

Text Solution

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The correct Answer is:
D
`C=C_(1)+C_(2)+C_(3)=(varepsilon_(0)A)/(d)+(varepsilon_(0)A)/(2d)+(varepsilon_(0)A)/(3d)`
`=(11)/(6)(varepsilon_(0)A)/(d)`
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