In which direction Cathode rays deflected in the presence of magnetic field?
Correct answer: B. Move downward
- A. Moves upward
- B. Move downward
- C. Move randomly
- D. Moves in straight line
Explanation
Correct option is B. Cathode rays are deflected by a magnetic field seen to bend downwards. If the rays are a stream of negative electrons moving from left to right they are equivalent to a positive or conventional electric current in the reverse direction.
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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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