Electrons (mass m, charge -e) are accelerated from rest through a potential difference V and are then deflected by a magnetic field B that is perpendicular to their velocity. The radius of the resulting electron trajectory is:
Correct answer: C. C
- A. A
- B. B
- C. C
- D. D
Explanation
Explanation is given below:(r = √2mV/e B or r = √2mV/eB2)
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About Electromagnetism
Magnetic flux density and magnetic flux describe the strength of a magnetic field and the field passing through a surface. A charged particle moving through a magnetic field experiences a force perpendicular to its velocity and may follow circular or helical motion, depending on the angle between velocity and field.
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