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The area of each plate of a parallel pla...

The area of each plate of a parallel plate capacitor is `100 cm^(2)` and the distance between the plates is `1 mm`. It is filled with mica of dielectric `6`. The radius of the equivalent capacity of the sphere will be

A

`47.7 m`

B

`4.77 m`

C

`477 m`

D

None of the above

Text Solution

Verified by Experts

The correct Answer is:
B
`C = (epsilon_(0)AK)/(d) = 4pi epsilon_(0)r`
`r =` Radius of sphere of equivalent capacity
`rArr r = (AK)/(4pi d) = (100 xx 10^(-4) xx 6)/(1 xx 10^(-3) xx 4 xx 3.14) = (15)/(3.14) = 4.77 m`
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Knowledge Check

  • What is the area of the plates of a 3 F parallel plate capacitor, if the sepreration between the plates is 5 mm ?

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