Physics

Problem

Two point charges are fixed on the

X

-axis in a medium of relative permittivity

2.5

+8\,\mu\text{C}

at the origin and

-2\,\mu\text{C}

x=0.30\,\text{m}

. Determine the magnitude and direction of the electric field at the point

x=0.15\,\text{m}

on the axis. a)

9.6\times10^{5}\,\text{N/C}

to the left b)

1.60\times10^{6}\,\text{N/C}

to the right c)

1.36\times10^{6}\,\text{N/C}

to the right d)

4.0\times10^{6}\,\text{N/C}

to the right