Navjyot Kalra
Last Activity: 10 Years ago
Sol. q abse 1 = q base 2 = q = 1.0 C distance between = 2 km = 1 × 10^3 m
so, force = kq base 1q base 2/r^2 F = (9 * 10^9) * 1 * 1/(2 * 10^3)^2 = 9 * 10^9/2^2 * 10^6 = 2,25 * 10^3 N
The weight of body = mg = 40 * 10 N = 400 N
So, wt of body/force between ch arg es = (2.25 * 10^3/4 * 10^2)^-1 = 1/5.6
So, force between charges = 5.6 weight of body.