39 A small ball having charge q is suspended from a

Last updated: 6/12/2023

39 A small ball having charge q is suspended from a weightless inextensible string It is placed in a region of uniform electric field E 3 10 N C as shown in figure In equilibrium the string is making an angle of 30 with the vertical If the mass of the ball is 3 3 g the charge on it is g 10ms