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)]`