The force between two small charged spheres having charges 3 × 10-6C and 4 × 10-6C placed 40 cm apart in air is
67.5 × 10-3 N
67.5 × 10-2 N
67.5 × 10-1 N
6.75 × 10-1 N
What is the force between two small charged spheres having charges 2×10−7C and 3×10−7C placed 30cm apart in air?
What is the forcebetween two small charged spheres having charges of 2 × 10−7C and 3 × 10−7 C placed 30 cm apart in air?