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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: - Thomson coefficient of a conductor is 10 µV/K. Its two ends are kept
- A magnetic needle suspended parallel to a magnetic field requires √3J of work
- An LCR circuit contains resistance of 100 ohm and a supply of 200 volt at 300 radian
- When photons of energy hν fall on an aluminium plate (of work function E₀),
- Two charges of equal magnitude q are placed in air at a distance 2a
Topics: Magnetic Effects of Current and Magnetism
(167)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Thomson coefficient of a conductor is 10 µV/K. Its two ends are kept
- A magnetic needle suspended parallel to a magnetic field requires √3J of work
- An LCR circuit contains resistance of 100 ohm and a supply of 200 volt at 300 radian
- When photons of energy hν fall on an aluminium plate (of work function E₀),
- Two charges of equal magnitude q are placed in air at a distance 2a
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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