Need to find the current in a wire

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SUMMARY

The discussion focuses on calculating the current in a wire subjected to a magnetic field. The wire is 480 meters long and experiences a force of 3.56 N in a magnetic field of 0.45 T. The correct formula used to find the current is F/(L*B) = I, where F is the force, L is the length of the wire, and B is the magnetic field strength. By substituting the given values into this equation, the current can be accurately determined in milliamperes (mA).

PREREQUISITES
  • Understanding of electromagnetic principles, specifically the relationship between force, magnetic field, and current.
  • Familiarity with the formula F/(L*B) for calculating current in a magnetic field.
  • Basic knowledge of unit conversions, particularly converting amperes to milliamperes.
  • Ability to manipulate algebraic equations to isolate variables.
NEXT STEPS
  • Study the Lorentz force law to understand the forces acting on charged particles in magnetic fields.
  • Learn about the applications of Ampere's Law in electrical circuits.
  • Explore unit conversion techniques, especially between amperes and milliamperes.
  • Investigate the effects of varying magnetic field strengths on current in conductive materials.
USEFUL FOR

Physics students, electrical engineers, and anyone interested in understanding the principles of electromagnetism and current calculations in conductive materials.

seagoing
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A wire 480 m long is in a 0.45 T magnetic
field. A 3.56 N force acts on the wire.
What current is in the wire? Answer in
units of mA.


I don't even really know where to start with this one. A friend of mine and I have been going through a lot of equations but so far everytime there is an extra variable that we cannot find.
 
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Wow, I was making this way too difficult then it needed to be.

I ended up using this equation:

F/L*B=I
 
that is the right eqn. while putting the values take care of proper units.
 

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