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Two square metal plates of side 1 m are ...

Two square metal plates of side `1 m` are kept `0.01 m` apart like a parallel plate capacitor in air in such a way that one of their edges is perpendicualr to an oil surface in the a tank filled with an insulating oil. The plates are connected to a battery of emf `55 V`. The plates are then lowered vertically into the oil at a speed of `0.001 ms^(-1)`. Calculate the current drawn from the battery during the process.
(Dielectric constant of oil `=11, epsilon_(0) = 8.85 xx 10^(-12) N^(-1) m^(-2))`.

Text Solution

Verified by Experts

The correct Answer is:
`4.43 xx 10^(-9) A`
`i=(dQ)/(dt) Q=CV,C=(epsilon_(0)A)/((x)/(K)+(d-x)) And v=(dx)/(dt)`.
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Two square metallic plates of 1m side are kept 0.01m apart, like a parallel plate capacitor, in air in such a way that one of their edges is perendicular, to an oil surface in a tank filled with an isulating oil. The plates are connected to a battery of e.m.f. 500 volt. The plates are then lowered vertically into the oil at a speed of 0.001 m//s . Calculate the current drawn from the battery during the process. [di-electirc constant of oil = 11, in_(0) = 8.85 xx 10^(-12) C^(2)//N^(2)m^(2)]

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