An oil drop of radius `10^(-6)m` carries a charge equal to that on an electron. If the density of
Channel: Doubtnut
Date: 2020-08-30

An oil drop of radius `10^(-6)m` carries a charge equal to that on an electron. If the density of the oil is `2xx10^(3)kg m^(3)`, find the electric field required to keep it stationary. Take `e=1.6xx10^(-19)C` and `g=9.8 ms^(-2)`.