A small charged plastic ball of mass m=2.00 g is suspended by a stringies of length L=40.0 cm in a uniform electric fiel
Posted: Fri Jul 15, 2022 7:26 am
A small charged plastic ball of mass m=2.00 g is suspended by a stringies of length L=40.0 cm in a uniform electric field E=5.00×103 N/C, as shown in the Figure. The ball is in equilibrium when the string makes a θ=30∘ angle with the vertical as indicated. a) Write the equation for calculating the charge q of the ball. [60\%] b) The charge of the ball should be positive or negative? [20\%] c) Calculate the magnitude of the charge on the ball. [20\%]