Calculate Force and Direction of Magnetic Field on a Wire

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SUMMARY

The discussion focuses on calculating the force exerted on a wire in a magnetic field using the formula F = BIL, where F is the force, B is the magnetic induction, I is the current, and L is the length of the wire. Participants calculated a force of 0.06 N for a 3.0 cm wire in a 0.40 T magnetic field with a 5.0 A current. Additionally, they determined that a 1.5 m wire experiencing a force of 1.5 N with a 0.050 A current corresponds to a magnetic induction of 20 T. The direction of the force is determined by the right-hand rule, which was not fully explored in the discussion.

PREREQUISITES
  • Understanding of the formula F = BIL for calculating magnetic force
  • Knowledge of magnetic induction (measured in Teslas)
  • Familiarity with the concept of current (measured in Amperes)
  • Basic grasp of the right-hand rule for determining force direction in magnetic fields
NEXT STEPS
  • Study the right-hand rule for magnetic force direction determination
  • Explore the implications of wire orientation in magnetic fields
  • Learn about the effects of varying magnetic induction on wire force calculations
  • Investigate the relationship between current, magnetic field strength, and force in electromagnetic applications
USEFUL FOR

Students in physics, electrical engineers, and anyone interested in understanding the principles of electromagnetism and magnetic forces on conductive materials.

davidelete
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Homework Statement


A wire 3.0 cm long lies perpendicular to a magnetic field with a magnetic induction of 0.40 T. Calculate the force on the wire if the current is 5.0 A. What is the direction of force?


Homework Equations



F=BIL

The Attempt at a Solution



I found the force to be .06 N but I have no idea how to find the direction.



Homework Statement


A wire 1.5 m long is at right angles to a magnetic field.

a. What is the magnetic induction of the field if the force on the wire is 1.5 N and the current is 0.050 A?

b. What is the force on the wire if it is rotated 90 degrees?

Homework Equations



F=BIL

The Attempt at a Solution



a. The answer is 20 Teslas.

b. I have no idea? Would it be zero because they are not perpendicular any more?
 
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I have no idea how to find the direction.
Perpendicular to the plane containing wire and magnetic field.
I have no idea? Would it be zero because they are not perpendicular any more?
It depends upon how the wire is rotated.
 

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