List of top Physics Questions on coulombs law asked in BITSAT

Two identical charged spheres are suspended from a common point by massless strings of length l, initially at a distance d(d≪ l) apart because of their mutual repulsion. The charges begin to leak from both the spheres at a constant rate. As a result, the spheres approach each other with velocity v. Then v varies as a function of the distance x between the spheres as:
Two identical charged spheres suspended from a common point by two massless strings of length l are initially at a distance d ≪ l apart because of their mutual repulsion. The charges begin to leak from both the spheres at a constant rate. As a result, the spheres approach each other with a velocity v. Then v varies as a function of distance x between the spheres as:

Three equal charges (\( q \)) are placed at corners of an equilateral triangle of side \( a \). The force on any charge is â

A charge Q₁ exerts some force on a second charge Q₂. If a third charge Q₃ is brought near, then the force exerted on Q₂ will: