Physics

Problem

Three point charges are placed on a straight line:

+6\,\mu\text{C}

x=-0.20\,\text{m}

-3\,\mu\text{C}

x=0

, and

+2\,\mu\text{C}

x=+0.40\,\text{m}

. Determine the net electric field at the point

x=+0.20\,\text{m}

(give magnitude and direction). a)

7.9\times10^{5}\,\text{N C}^{-1}

rightward b)

5.6\times10^{5}\,\text{N C}^{-1}

rightward c)

7.9\times10^{5}\,\text{N C}^{-1}

leftward d)

0.90\times10^{5}\,\text{N C}^{-1}

leftward