A light beam travelling in the x-direction is described by the electric field E_ y =(300…

Physics · NEET · NTA ExamsMagnetic Effects of Current and Magnetism

A light beam travelling in the x-direction is described by the electric field \(E_{y}=(300 \mathrm{~V} / \mathrm{m}) \sin \omega(t-x / c)\). An electron is constrained to move along the y-direction with a speed of 2.0 x 107 m/s. Find the maximum electric force and the maximum magnetic force on the electron.

  1. 48 x 10-17 N and 32 x 10-18 N
  2. 8 x 10-7 N and 2 x 10-8 N
  3. 48 N and 3.0 N
  4. 4 x 10-9 N and 3 x 10-8 N

Answer

(A) 4 ∙ 8 x 10 -17 N and 3 ∙ 2 x 10 -18 N

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