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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
- In refraction, light waves are bent on passing from one medium to the second medium
- There is a ring of radius r having linear charge densityλ and rotating with a uniform
- Find out the e.m.f. produced when the current changes from 0 to 1 A in 10 sec.
- The horizontal range and maximum height attained by a projectile are R and H,respectively
- When 10¹⁹elecrons are removed from a neutral metal plate through some process,
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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