Moving a conducting rod in a magnetic field

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SUMMARY

A small conducting rod of length l moving with a uniform velocity v in a uniform magnetic field B experiences a magnetic force that causes the electrons within the rod to shift. This shift results in a deficit of electrons at one end, specifically end Y, which becomes positively charged. The direction of the magnetic force can be determined using the right-hand rule, which relates the velocity of the electrons and the direction of the magnetic field. Understanding this relationship is crucial for explaining the induced current in the rod.

PREREQUISITES
  • Understanding of electromagnetic theory, specifically Lorentz force
  • Familiarity with the right-hand rule for determining force direction
  • Basic knowledge of electric charge distribution in conductors
  • Concept of induced current in conductive materials
NEXT STEPS
  • Study the Lorentz force law in detail
  • Learn about the right-hand rule and its applications in electromagnetism
  • Explore the concept of induced electromotive force (EMF) in moving conductors
  • Investigate the behavior of charges in magnetic fields using simulations or experiments
USEFUL FOR

Physics students, educators, and anyone interested in understanding the principles of electromagnetism and the behavior of conductors in magnetic fields.

subhradeep mahata
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Homework Statement


ck_5afe55284ad17.png

A small conducting rod of length l moves with a uniform velocity v in a uniform magnetic field B. Explain how the end Y becomes positively charged.

Homework Equations

The Attempt at a Solution


I know the concept, a force will act on the conductor which will push the electrons , and the end where electrons will be deficit will have positive charge. But I can't understand how to find the direction of force...I feel that the direction of induced current is also required. Please help me out ![/B]
 

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subhradeep mahata said:

Homework Statement


View attachment 225965
A small conducting rod of length l moves with a uniform velocity v in a uniform magnetic field B. Explain how the end Y becomes positively charged.

Homework Equations

The Attempt at a Solution


I know the concept, a force will act on the conductor which will push the electrons , and the end where electrons will be deficit will have positive charge. But I can't understand how to find the direction of force...I feel that the direction of induced current is also required. Please help me out ![/B]
Think of the electrons inside the rod. You know the direction of their velocity so you can determine the direction of the magnetic force on them.
 
Oh yes ! Now i get it...
Thanks nrqed
 

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