Case : Read the passage and answer the question(s).
A charged particle whose mass is 19.9 ×10-27 kg and charge is 1.6×10-19 C moves with a speed of 3×105 m/s at right angle to a magnetic field of 0.75 T.
In case of motion of a charged particle in a steady magnetic field, which of the following remain constant?
Answer & explanation
Correct answer: option 1
Since the direction of magnetic force will always be perpendicular to velocity, no work is done on the particle and so speed remains same, it only changes the direction.