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An electron moving in a uniform magnetic field of induction of intensity B, has its radius directly proportional to
Options
(a) its charge
(b) magnetic field
(c) speed
(d) none of these
Correct Answer:
speed
Explanation:
When electron moves in magnetic field
mv² / r = qvB or, r = mv / qB.
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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
- If the length of a closed organ pipe is 1.5 m and velocity of sound is 330 m/s,
- A boat which has a speed of 5 kmh⁻¹ in still water crosses river of width 1 km long
- The equations of motion of a projectile are given by x=36 t metre and 2y=96t-9.8t²
- A transformer rated at 10 kW is used to connect a 5 kV transmission line to a 240 V
- A circular road of radius 1000m has banking angle 45°.The maximum safe speed of a car
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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