A uniform magnetic field is directed into the page. Because of the presence of a

Question

A uniform magnetic field is directed into the page. Because of the presence of a tenuous gas in the region, a charged particle moving in the plane of the page follows an anti-clockwise spiral of decreasing radius as shown. (For each statement select T True, F False). A) The magnetic force is doing exactly zero work on the charge at all times B) The charge is negative. C) The magnitude of the momentum of the particle is increasing. D) The magnitude of the acceleration vector of the particle is constant. E) The speed of the charge is constant

Explanation / Answer

A) The magnetic force is doing exactly zero work on the charge at all times = False

B) The charge is negative. = False

C) The magnitude of the momentum of the particle is increasing. = False

D) The magnitude of the acceleration vector of the particle is constant. = False

E) The speed of the charge is constant. = False

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