Question

What is the force between two small charged spheres having charges 2mC and 3mC placed in 30 cm in air?

Answer 1

Answer:

Force between the charges is (6×10^5) N

Explanation:

Given,

q1 = 2×10^-3 C

q2 = 3 × 10^-3 C

r = 30 cm = 0.3 m = 3 × 10^-1 m

Formula,

F = kq1q2/r^2

F = (9 × 10^9)(2 × 10^-3)(3 × 10^-3)/ (3×10^-1)^2

F = 6 × 10^(9-3-3+2)

F = 6 × 10^5 N