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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
- A parallel plate capacitor has 91 plates, all are identical and arranged with same
- The drive shaft of an automobile rotates at 3600 rpm and transmits 80 HP
- A wire elongates by l mm when a load W is hanged from it. If the wire goes over
- The ratio of the radii or gyration of a circular disc to that of a circular ring
- The transition from the state 3 n = 3 to n = 1 in a hydrogen like atom results
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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