Question

3. Two particles, one with a charge of 12 C, the other with a charge of 13 C experience a force of 2800 N. What

is the distance between the charges?

Answer 1

r = 22393 m.

From the Coulomb's Law equation F = kq₁q₂/r² we have to clear the distance r:

r = √kq₁q₂/F

Solving:

r = √[(9x10⁹N.m²/C²)(12C)(13C)]/2800N

r = 22393 m