An electron is moving along + x direction with a velocity of 6 × 10 6 ms - 1 . It enters a region of uniform electric field of 300 V / c m pointing along + y direction. The magnitude and direction of the magnetic field set up in this region such that the electron keeps moving along the x direction will be:

Question

An electron is moving along + x direction with a velocity of 6 × 10 6 ms - 1 . It enters a region of uniform electric field of 300 V / c m pointing along + y direction. The magnitude and direction of the magnetic field set up in this region such that the electron keeps moving along the x direction will be:, 3 × 10 - 4 T , along + z direction, 5 × 10 - 3 T , along - z direction, 5 × 10 - 3 T , along + z direction, 3 × 10 - 4 T , along - z direction

MARKS App · Accepted Answer

q ∨ B = q E B = E V = 30000 6 × 10 6 = 5 × 10 3 T Magnetic force F = q ( V → × B → ) So Ans. 5 × 10 3 T ,along +Z direction

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