Force on a Current Carrying Conductor Placed in External Magnetic Field
Which of the ...
Question
Which of the following property of a proton can change when it moves freely in a magnetic field?
A
Kinetic energy
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B
Velocity
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C
Mass
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D
Speed
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Solution
The correct option is B Velocity When a proton moves freely in a magnetic field it does not change its mass and speed, but changes its direction of motion. So, only velocity of a proton changes.