A metal rod of length l cuts across a uniform magnetic field B with a velocity v.

A Metal Rod Of Length L Cuts Across A Uniform Physics Question

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:

  1. A coin placed on a rotating turn table just slips,if it is placed at a distance
  2. The kinetic energy of α-particle emitted in the α-dacay of ₈₈Ra²²⁶ is
  3. A particle is executing SHM along a straight line. Its velocities at distances
  4. Two straight wires each 10cm long are parallel to one another and seperated by 2 cm.
  5. Which one of the following is not a unit of young’s modulus?

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.

NEETLab Mobile App

Share this page with your friends

Be the first to comment

Leave a Reply

Your email address will not be published.


*