Question

Two small spheres, each of mass 0.05g are suspended by silk threads from the same point. When given equal charges, they separate the threads making an angle of 10°
with each other. What is the force of repulsion acting on each sphere?

Answer 1

➡Two small spheres of masses 10 kg and 30 kg are joined by a rod of length 0.5 m and of negligible mass. The M.I. of the system