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A beam of electron passes undeflected through mutually perpendicular electric and magnetic fields. If the electric field is switched off, and the same magnetic field is maintained, the electrons move
Options
(a) in a circular orbit
(b) along a parabolic path
(c) along a straight line
(d) in an elliptical orbit.
Correct Answer:
in a circular orbit
Explanation:
If the electric field switched off, and the same magnetic field is maintained, the electrons move in a ciruclar orbit and electron will travel a magnetic field to its velocity.
Related Questions: - In a capillary tube water raises by 1.2 mm. The height of water that will rise
- Velocities of sound measured in hydrogen and oxygen gas at a given temperature
- Calcium plate has a maximum possible radiation wavelength 400 nm to eject electrons.
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Topics: Magnetic Effects of Current and Magnetism
(167)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- In a capillary tube water raises by 1.2 mm. The height of water that will rise
- Velocities of sound measured in hydrogen and oxygen gas at a given temperature
- Calcium plate has a maximum possible radiation wavelength 400 nm to eject electrons.
- The fundamental frequency of a closed organ pipe of length 20 cm is equal to the second
- According to Hook’s law, force is proportional to
Topics: Magnetic Effects of Current and Magnetism (167)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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