Saved Bookmarks
| 1. |
A half ring of radius R has a charge of λ per unit length. The potential at the centre of the half ring is(a) k λ/R(b) k λ/πR(c) k πλ/R(d) kπλ |
|
Answer» Correct Answer is: (d) kπλ The total charge on the half ring is πRλ. As all points on the ring are at a distance R from the centre, the potential at the centre is V = k πRλ/R = kπλ. |
|