Physics Moving Charge and Magnetism Motion of Charged Particle In Magnetic Field MCQ (Single Correct)

If a proton is projected in a direction perpendicular to a uniform magnetic field with velocity v and an electron is projected along the lines of force, what will happen to proton and electron

A
The electron will travel along a circle with constant speed and the proton will move along a straight line
B
Proton will move in a circle with constant speed and there will be no effect on the motion of electron
C
There will not be any effect on the motion of electron and proton
D
The electron and proton both will follow the path of a parabola

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Verified by Experts
The correct answer is:
B

For proton, and for electron .
So, force on proton whereas, force on electron .

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