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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
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Subject: Physics
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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- In which of the processes, does the internal energy of the system remain constant?
- A spherical conductor of radius 2 m is charged to a potential of 120 V. It is now
- A block of mass m moving at a velocity v collides with another block of mass 2m
- A bullet is shot from a riffle. As a result the rifle recoils.The kinetic energy of riffle
- The value of workdone for rotating a magnet of magnetic moment M by an angle θ in external
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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