railway RRB Technician Grade 1 Mock Test 2024 Physics Electric Charges and Coulomb's Law Coulomb’s Law
Two charged balls of masses 1 kg each have also 1 coulomb charge on each of them. They are separated by a fixed distance r. The ratio of gravitation force to electrostatic force between them will be
1
0.2 × 10-19
2
0.7 × 10-20
3
0.5 × 10-19
4
0.7 × 1020