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Question
Which of the following property of a proton can change while it moves freely in a magnetic field? (There may be more than one correct answer.)
Options
mass
speed
velocity
momentum
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Solution
velocity and momentum
Explanation:
Every charged particle moving in a magnetic field experiences a force. Fleming's left-hand rule determines the direction of the force on a positively charged particle (such as a proton). This force will alter both the velocity and momentum of the proton.
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