A charged particle of mass 'm' and charge 'q' moving under the influence of uniform electric field {Ei} and a uniform magnetic field {Bk} follows a trajectory from point P to Q as shown in figure. The velocities at P and Q are respectively, {vi} and -{2vj}. Then which of the following statements (A, B, C, D) are the correct ? (Trajectory shown is schematic and not to scale) : (A) E = 3/4 ≤ft( mv²/qa ) (B) Rate of work done by the electric field at P is 3/4 ≤ft( mv²/a ) (C) Rate of work done by both the fields at Q is zero (D) The difference between the magnitude of angular momentum of the particle at P and Q is 2 mav. [9 Jan 2020 Shift 1]

Question

Examsnet · Accepted Answer

Correct Answer is : (A), (B), (C)

Magnetic Effects of Current and Magnetism Part 1