MHT CET Physics question

In a cyclotron, the applied magnetic field

(A)Changes only the direction of the charged particleCorrect
(B)Increases only the speed of the charged particle
(C)Changes the direction of the particle and increases the speed of the particle
(D)Neither increases the speed nor changes the direction

Answer: (A)

Solution

The magnetic force is always perpendicular to velocity, so it only changes the direction (bends the path into a semicircle) and

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Question ID VK-078527