• Support PF! Buy your school textbooks, materials and every day products Here!

Cylinder in a magnetic field

  • Thread starter carah90
  • Start date
  • #1
2
0

Homework Statement


The figure shows a tree cylinder of mass m = 0.250 kg and length L = 0.100 m. In a plane containing the cylinder axis of symmetry a conducting wire has been longitudinally wrapped 10.0 times around the cylinder. The cylinder is released along an inclined plane (angle θ), so that the plane formed by the wire coil is parallel to the inclined plane. How much current(I) should go through the wire so that the cylinder does not begin to roll down the plane, if a vertical magnetic field B = 0.500 T intersect with the inclined plane?

Here's a link to the figure: https://lh3.googleusercontent.com/_Z0fi2BqoS24/TVFxISWgGbI/AAAAAAAAAuY/U3-f2ua1Fnc/Picture%201.png [Broken]

Homework Equations





The Attempt at a Solution


I don't know where to begin. Maybe using Biot-Savart's law?
Thanks in advance:)
 
Last edited by a moderator:

Answers and Replies

  • #2
gneill
Mentor
20,793
2,773
Think torque.
 
  • #3
2
0
okey. thanx. will give it a try.
 

Related Threads on Cylinder in a magnetic field

  • Last Post
Replies
6
Views
2K
Replies
1
Views
4K
Replies
17
Views
1K
Replies
11
Views
656
  • Last Post
Replies
12
Views
4K
Replies
2
Views
917
  • Last Post
Replies
8
Views
6K
Replies
3
Views
6K
Replies
28
Views
19K
Replies
5
Views
5K
Top