Question

Point charges $Q_1=5mC$ (millicoulomb) and $Q_2=6mC$ (millicoulomb) are at a separation of 100m from each other. What is the magnitude of force on any one of the charge?

• A. 27N
• B. 25N on $Q_1$ and 24N on $Q_2$
• C. 23N
• D. not enough information is given in the question.

Answer 1

The correct option is A

27N

$F=\frac{K{q}_1{q}_2}{r^2}=\frac{9\times {10}^9\times 5\times {10}^{-3}\times 6\times {10}^{-3}}{{10}^4}$

$=27N$