Magnetic Effects of Current
Not what you're looking for?
If a wire is placed next to the face of a permanent magnet and a current sent through the wire, then a Lorentz force is present orthogonal to both the direction of the current and the magnetic field. I would assume there should be a linear force on the magnet in the other direction, but the magnetic field caused by the current in the wire should only create a torque on the magnet. So how is momentum conserved?
Purchase this Solution
Solution Summary
The expert examines magnetic effects of currents. A detailed explanation provided.
Solution Preview
(Please refer to the attachment for figs.)
It is assumed that the current carrying conductor is placed close to a pole (say north pole) of a permanent bar magnet.
Force F on the current carrying conductor will act as shown in the above fig..
Force on the magnet will not act at a single point. It will be distributed along the magnet. Blue lines represent the magnetic lines due to the current carrying conductor. Obviously the magnetic flux density due to the current carrying conductor will be higher at the north pole (being nearer) than at the south pole. As such, the ...
Purchase this Solution
Free BrainMass Quizzes
Introduction to Nanotechnology/Nanomaterials
This quiz is for any area of science. Test yourself to see what knowledge of nanotechnology you have. This content will also make you familiar with basic concepts of nanotechnology.
The Moon
Test your knowledge of moon phases and movement.
Variables in Science Experiments
How well do you understand variables? Test your knowledge of independent (manipulated), dependent (responding), and controlled variables with this 10 question quiz.
Intro to the Physics Waves
Some short-answer questions involving the basic vocabulary of string, sound, and water waves.
Classical Mechanics
This quiz is designed to test and improve your knowledge on Classical Mechanics.