Three charges are arranged in the (x, y) plane as shown.What is the magnitude of the resulting force on the 9 nC charge at the origin? The value of the Coulomb constant is 8.98755 × 109 N · C 2 /m2 . Answer in units of N
There are four equal charges that are kept at each corner of a square. How do I calculate the force experienced by one charge? What is the final expression?