Two small balls have equal posltive charges Q (coulomb). They are suspended by two insultating strings of equal length L (metre) from a hook flxed to a stand. The whole set up is taken to a satelllte in space where there is no gravity (state of welghtlessness). Calculate the angle between the two strings and tension in each string in newton.

Explanation

As thw two balls are weightless, no downward force acts on them. The two strings will be horizontal due to the electrostatic repulslve force between the balls, i.e., the angle between the strings will be `180^(@)`
Tension in each string `=(1)/(4piin_(0)).(Q^(2))/((2L)^(2))=(Q^(2))/(16piin_(0)L^(2))N`