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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
- Electric field at a point of distance r from a uniformly charged wire of infinite
- A tube of length L is filled completely with an incompressible liquid of mass
- Two identical flutes produce fundamental notes of frequency 300 Hz at 27° C
- A long straight wire of radius a carries a steady current I. The current is uniformly
- Source S₁ is producing, 10¹⁵ photons per second of wavelength 5000Å
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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