| ⇦ | 
| ⇨ |
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.
Related Questions: - If a nucleus ᴢXᴬ emits 9α and 5β-particles, then the ratio of total protons and neutrons
- In intrinsic semiconductor at room temperature number of electrons and holes are
- An electron moving in a circular orbit of radius r makes n rotations per second.
- If ∆Q>0 when heat flows into a system, ∆W>0 when work is done on the system
- In producing chlorine through electrolysis 100 watt power at 1125 V is being
Topics: Magnetic Effects of Current and Magnetism
(167)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- If a nucleus ᴢXᴬ emits 9α and 5β-particles, then the ratio of total protons and neutrons
- In intrinsic semiconductor at room temperature number of electrons and holes are
- An electron moving in a circular orbit of radius r makes n rotations per second.
- If ∆Q>0 when heat flows into a system, ∆W>0 when work is done on the system
- In producing chlorine through electrolysis 100 watt power at 1125 V is being
Topics: Magnetic Effects of Current and Magnetism (167)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
Leave a Reply