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A metal rod of length l cuts across a uniform magnetic field B with a velocity v. If the resistance of the circuit of which the rod forms a part is r, then the force required to move the rod is
Options
(a) B²l²v/r
(b) Blv/r
(c) B²lv/r
(d) B²l²v²/r
Correct Answer:
B²l²v/r
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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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 an α-particle of mass m moving with velocity ν bombards on a heavy nucleus
- An electric kettle takes 4A current at 220 V. How much time will it take to boil 1 kg
- A spherical body of emissivity e=0.6, placed inside a perfectly black body is maintained
- A bicyclist comes to a skidding stop in 10 m.During this process, the force
- The polarising angle of glass is 57⁰. A ray of light which is incident at this angle
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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