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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 capacitor having a capacity of 2 μF is charged to 200V and then the plates
- The flux linked with a circuit is given by φ=t³+3t-7. The graph between time
- A body of mass m is thrown upwards at an angle θ with the horizontal with velocity
- The temperature coefficient of resistance of an alloy used for making resistor is
- In an electrical circuit R,L,C and an AC voltage source are all connected in series.
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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