Question

When a positively charged particle enters a uniform
magnetic field with uniform velocity, its trajectory
can be (i) a straight line (ii) a circle (iii) a helix.
(a) (i) only
(b) (i) or (ii)
(c) (i) or (iii)
(d) any one of (i), (ii) and (iii)​

Answer 1

Answer:

d.anyone of i, ii,and iii