A ring of mass
m and radius
R is placed on a rough surface in a uniform electric field. The friction is sufficient to avoide sliding. The charge per unit length on the ring is
λ such that half ring is positive and half is negatively charged. E = 5 V/m, m = 0.5 kg,
λ = 2.5 C/m and R = 1m. Column 1 gives a question and in column 2 there are numberical answers in S.I unit.
(A) | Maximum torque on the ring about 0 (kgm2/s2) | 1) 50 |
(B) | Maximum acceleration of the ring (m/) | 2) 25 |
(C) | Maximum friction force on the ring (N) | 3) 10 |
(D) | Maximum speed of the ring (m/s) | 4) 12.5 |
| | 5) None |