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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
- If sound wave travel from air to water, which of the following remains unchanged?
- A lead bullet of 10 gm travelling at 300 m/s strikes against a block
- Two wheels having radii in the ratio 1:3 are connected by a common belt
- The process of adding impurities to the pure semiconductor is called
- A Zenor diode has a contact potential of 1 V in the absence of biasing. It undergoes
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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