A circular ring of radius carries a uniform charge of

PHYSICS · Single correct · CBSE · Physics · Electric Charges and Fields · Electric Charges and Fields

Problem

A circular ring of radius

0.10\,\text{m}

carries a uniform charge of

5.0\,\mu\text{C}

. A point charge of

2.0\,\mu\text{C}

is placed on the axis of the ring at a point

0.060\,\text{m}

from its centre. Find the magnitude of the electrostatic force on the point charge.

k = 9 \times 10^{9}\,\text{N m}^{2}\text{/C}^{2}

. (a)

0.40\;\text{N}

(b)

5.7\;\text{N}

(c)

3.4\;\text{N}

(d)

2.7\;\text{N}