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Question: An electron flies into a homogeneous magnetic field perpendicular to the force lines. The velocity o...

An electron flies into a homogeneous magnetic field perpendicular to the force lines. The velocity of the electron is v = 4 × 107 m/s. The induction of the field is 10–3T. What is tangential acceleration of electron in the magnetic field –

A

7 × 1015 m/s2

B

7 × 1013 m/s2

C

7 × 1014 m/s2

D

None of these

Answer

None of these

Explanation

Solution

Velocity magnitude will not change as magnetic field does not work on charge.