Register to reply

Force on wire due to magnetic field

by nickclarson
Tags: field, force, magnetic, wire
Share this thread:
nickclarson
#1
Apr30-09, 10:54 AM
nickclarson's Avatar
P: 32
1. The problem statement, all variables and given/known data

A straight segment of a current-carrying wire has a current element IL where I = 2.70 A and L = 2.60 cm i + 4.40 cm j. The segment is in a region with a uniform magnetic field given by 1.36 T i. Find the force on the segment of wire. (Give the x, y, and z components.)

2. Relevant equations

[tex]\theta = tan^{-1}(y/x)[/tex]

[tex]F = ILBsin\theta[/tex]

3. The attempt at a solution

Well I am pretty sure there will be no x or y component because the force will be perpendicular in the z direction.

To find the z component I found the angle between the wire and the mag field using:

[tex]tan^{-1}(4.4/2.6) = 59.421[/tex]

After that I thought you are just supposed to plug everything in:

[tex]2.7A * .05111m * 1.36 * sin(59.421) = .1615N[/tex]

But it's wrong!! I'm not sure what I am doing wrong, the book I am using isn't very good ad explaining. I'm sure it's something simple that I am just overlooking.

Thanks,
Nick
1. The problem statement, all variables and given/known data



2. Relevant equations



3. The attempt at a solution
Phys.Org News Partner Science news on Phys.org
Climate change increases risk of crop slowdown in next 20 years
Researcher part of team studying ways to better predict intensity of hurricanes
New molecule puts scientists a step closer to understanding hydrogen storage
nickclarson
#2
Apr30-09, 10:56 AM
nickclarson's Avatar
P: 32
CANCEL that. I just had the wrong sign. I understand why it should be negative now. This thread can be deleted.


Register to reply

Related Discussions
Wire Loops, Current, Magnetic Field, & Straight Wire HELP! Introductory Physics Homework 1
Force of wire in a magnetic field Introductory Physics Homework 2
Force, magnetic field, current, long straight wire Advanced Physics Homework 3
Force Due to Magnetic Field on a Charge Carrying Wire Advanced Physics Homework 2
Wire in a magnetic field General Physics 11