Multiple choice

An electron moves in X-Y plane with a speed of 10^6 m/s. Its velocity vector makes an angle of 60 degrees with the X axis. A magnetic field of magnitude 10-2 T exists along Y axis. Compute the magnitude force exerted on the electron and its direction.

  1. 9 x 109 Newton along Z axis

  2. 8 x 10-16 Newton along Z axis

  3. 3.204 x 10-15 Newton along Y axis

  4. 8 x 103 Newton along Y axis

  5. -
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Flux Density (B) = 10-2 Wb Charge on electron (e) = 1.602 x 10-19 C

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