Q 24 A charged dust particle of radius 5 x 107 mis located

Last updated: 6/12/2023

Q 24 A charged dust particle of radius 5 x 107 mis located in a horizontal electric field having an intensity of 6 28 x 10 V m The surrounding medium is air with coefficient of viscosity n 1 6 x 10 5 N s m If the particle moves with a uniform horizontal speed 0 02 m s the number of electrons on it is