How Does Magnetic Force Affect a Wire in a Field?

Remember that the wire only experiences a force in the section where there is a magnetic field present. So you need to find the length of the wire where the field is present, and use that for L.In summary, a wire with a conventional current of 2.3 A running through it in the +x direction is oriented along the x-axis and connected to two batteries. Along 0.27 m of its length, there is a magnetic field of 0.82 tesla in the +y direction due to a nearby magnet. The magnetic force on the wire can be calculated using the equation F=I*LxB, with L representing the length of the wire where the magnetic field is present.
  • #1
sdevoe
21
0

Homework Statement


A wire is oriented along the x-axis. It is connected to two batteries, and a conventional current of 2.3 A runs through the wire, in the +x direction. Along 0.27 m of the length of the wire there is a magnetic field of 0.82 tesla in the +y direction, due to a large magnet nearby. At other locations in the circuit, the magnetic field due to external sources is negligible.
What is direction and magnitude of the magnetic force on the wire?


Homework Equations


no clue

The Attempt at a Solution


nothing?
 
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  • #2
There is an equation that relates the force on a wire of length L to the current I flowing and the magnetic field strength B. See if you can find it.
 
  • #3
F=I*LxB?
 
  • #4
Yes, that's the one.

The tricky part is what to use for L.
 

1. What is magnetic force on a wire?

Magnetic force on a wire is the force exerted on a current-carrying wire in a magnetic field. This force is perpendicular to both the direction of the current and the direction of the magnetic field.

2. How is the magnitude of magnetic force on a wire determined?

The magnitude of magnetic force on a wire is determined by the equation F = ILBsinθ, where I is the current in the wire, L is the length of the wire, B is the strength of the magnetic field, and θ is the angle between the wire and the magnetic field.

3. Can the direction of magnetic force on a wire be reversed?

Yes, the direction of magnetic force on a wire can be reversed by either reversing the direction of the current or reversing the direction of the magnetic field.

4. What factors affect the strength of magnetic force on a wire?

The strength of magnetic force on a wire is affected by the strength of the magnetic field, the current in the wire, the length of the wire, and the angle between the wire and the magnetic field.

5. How is the direction of magnetic force on a wire determined?

The direction of magnetic force on a wire is determined by the right-hand rule. If the thumb of your right hand points in the direction of the current, and your fingers point in the direction of the magnetic field, then the direction of the force will be perpendicular to both the current and the magnetic field, in the direction your palm is facing.

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