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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
- For a satellite escape velocity is 11 kms⁻¹.If the satellite is launched at an angle
- Two identical cells of the same e.m.f. and same internal resistance
- If the nucleus ²⁷₁₃Al has nuclear radius of about 3.6 fm
- The average power dissipated in a pure inductor is
- Two bodies A(of mass 1kg) and B(of mass 3 kg) are dropped from heights of 16m and 25m
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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