How Do You Calculate Magnetic Force in a Moving Conductor Setup?

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SUMMARY

The discussion centers on calculating the magnetic force acting on a conducting bar sliding on two conducting rails within a magnetic field. Key formulas mentioned include F = qv x B, F = IL x B, and the centripetal force. To determine the magnetic force, one must first calculate the current in the bar using Faraday's law of electromagnetic induction. The problem emphasizes the relationship between the bar's velocity, the magnetic field strength, and the induced current.

PREREQUISITES
  • Understanding of Faraday's law of electromagnetic induction
  • Familiarity with the Lorentz force equation (F = qv x B)
  • Knowledge of the relationship between current, magnetic fields, and forces (F = IL x B)
  • Basic concepts of resistance and its effect on current flow
NEXT STEPS
  • Study Faraday's law of electromagnetic induction in detail
  • Learn how to derive the induced current in a moving conductor
  • Explore the application of the Lorentz force in different electromagnetic setups
  • Investigate the effects of resistance on current in conductive materials
USEFUL FOR

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

rocafella1583
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I have a problem where I'm given a conducting bar that slides to the right on 2 conducting rails.

The magnetic field is given, as well as the resistance, the length of the bar, and the speed that the bar is moving.

The magnetic force is what is wanted. Now I know 3 formulas

F= qv x B, F = IL x B, and the centripetal force, all forces that can be applied to magnetic force.

But I cannot figure out this problem for the life of me. Can anyone help?
 
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You have to find the current in the bar from Faraday's law.
 
Thanks

Thank you
 
Last edited:

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