A uniform electric field of magnitude is directed vertically downward

PHYSICS · Subjective · CBSE · Physics · Electric Charges and Fields · Electric Charges and Fields

Problem

A uniform electric field of magnitude

3.0\times10^{4}\,\text{N C}^{-1}

is directed vertically downward. A point charge

-4.0\,\mu\text{C}

is fixed at the origin. (i) Determine the magnitude and direction of the net electric field at the point

P(0.08\,\text{m},\,0)

located

0.08\,\text{m}

to the right of the charge. (ii) Determine the magnitude and direction of the net electric field at the point

Q(0,\,0.08\,\text{m})

located

0.08\,\text{m}

above the charge. (iii) Between the points

P

and

Q

, which one experiences the stronger net field? Give a brief reason based on your calculations.