railway RRB Technician Grade 1 Mock Test 2024 Physics Electric Charges and Coulomb's Law Coulomb’s Law
Two spheres carrying charges + 6 μC + 9 μC are separated by a distance d. They experience a force of repulsion F. When a charge of – 3 μC is given to both the spheres and kept at the same distance as before, the new force of repulsion will be
1
F
2
3F
3
F/3
4
F/9