Question

2. (i) A uniformly charged ring has radius a-0.1 5m and total charge Q-24 nC (seefigure below What is the circumference of the ring, and thus the charge per unit length (charge density) of the ring (m); charge density (C/m) Circumference

Answer 1

Given is:-

Radius of the ring

Total charge on the ring  

Now,

the circumference of the circular ring is given by

by plugging the radius we get

C 0.9425772

and the charge density is given by

which gives us