Electrostatics

Question

A charge 10 to the power minus 9 coulomb is located at the origin in free space and another charge Q at 2 0 0.  if the X component of the electric field at 3 1 1  is zero calculate the value of Q. is the y component zero at 3,1,1

Answer 1

Here , For charge 10⁻⁹C ,

x-component of electric field due to 10⁻⁹C charge

\(E_1=\frac{k10^{-9}}{(\sqrt{11})^2}(\frac{3\hat i}{\sqrt{11}}i)\)

x-component of electric field due to Q charge