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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: - When a metallic surface is illuminated with radiation of wavelength λ,
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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
- When a metallic surface is illuminated with radiation of wavelength λ,
- To measure the roughness of the surface of a material, which of the following microscope
- A battery of emf 10 V and internal resistance 3 ohm is connected to a resistor.
- In the series resonance the value of impedence is 3 Ω and the resistance is 4Ω,
- In the phenomenon of electric discharge through gases at low pressure,
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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