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A uniform electric field and uniform magnetic field are acting along the same direction in a certain region. If an electron is projected in the region such that its velocity is pointed along the direction of fields, then the electron
Options
(a) will turn towards right of direction of motion
(b) speed will decrease
(c) speed will increase
(d) will turn towards left direction of motion
Correct Answer:
speed will decrease
Explanation:
v⃗ and B⃗ aer in same direction so that magnetic force on electron becomes zero, only electric force acts. But force on electron due to electric field is opposite to the direction of velocity.
Related Questions: - The lowest frequency of light that will cause the emission of photoelectrons
- The magnetic susceptibility of a material of a rod is 299. Permeability of vacuum
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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
- The lowest frequency of light that will cause the emission of photoelectrons
- The magnetic susceptibility of a material of a rod is 299. Permeability of vacuum
- The wavelength of X-rays is in the range
- Consider a compound slab consisting of two different materials having equal thickness
- A thermocouple is made from two metals, antimony and bismuth. If one junction
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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