Question

Two point charges lie on the x axis. A charge of 6.3 μC is at the origin, and a charge of -9.5 μC is at x=10.0cm. Express your answer using two significant figures.
A. What is the net electric field at x=−4.0cm?

B.What is the net electric field at x=+4.0cm?

Answer 1

Answer: a) 31.07 * 10^6 N/C ; b) 11.68 * 10^6 N/C

Explanation: in order to solve this problem we have to use the Coulomb force which is given by:

F=k*q1*q2/r^2

( see attach for details)