A particle A having a charge of 5.0 * 10^-7 is fixed in vertical wall.A second particle B of mass 100g and have equal charge is suspended by a silk thread of length 30cm above the particle A.The point of suspension is 30cm above the particle A.The angle of the thread with the vertical when it stays in Equilibrium.
A particle A having a charge of 5.0 * 10^-7 is fixed in vertical wall.A second particle B of mass 100g and have equal charge is suspended by a silk thread of length 30cm above the particle A.The point of suspension is 30cm above the particle A.The angle of the thread with the vertical when it stays in Equilibrium.