C 2 1 4 21 Figure 4 220 shows a charged particle of mass 2g

Last updated: 6/9/2023

C 2 1 4 21 Figure 4 220 shows a charged particle of mass 2g and charge 5 C enters a circular region of radius 10cm in which there is a uniform magnetic field of strength 4T and directed perpendicular to the plane of circular region in the figure If the particle velocity vector rotates through 90 angle in passing through this region then its speed is A 0 25 mm s C 1 cm s C Figure 4 220 B 4 mm s D 1 mm s