Physics

Problem

Identical charges of

+5.0\,\mu\text{C}

are fixed at

(+3\,\text{cm},0)

and

(-3\,\text{cm},0)

. Calculate the magnitude and direction of the net electric field at the point

(0,4\,\text{cm})

. a)

3.60\times10^{7}\,\text{N C}^{-1}

upward along

+y

2.16\times10^{7}\,\text{N C}^{-1}

upward along

+y

2.88\times10^{7}\,\text{N C}^{-1}

upward along

+y

2.88\times10^{7}\,\text{N C}^{-1}

downward along

-y