Magnetic Fields in a Conducting Wire
Not what you're looking for?
7. A conducting metal rod 1.0 cm in diameter carries 500-A current distributed uniformly over its cross section. Using Ampere's law (a) find the magnetic field strength 0.25 cm from its axis (b) Find the B field strength at the rod's surface. (c) Find the B field at a distance 10-cm away from the center.
Purchase this Solution
Solution Summary
This solution contains step-by-step calculations to determine the field inside, outside and at the surface of a wire carrying uniform current distribution.
Solution Preview
Please see the attached file. Please double check calculations. In case of any doubt or confusion please contact back.
Reading: Ampere's law
The magnetic field at a point due to a axially symmetric current distribution can be given by using Ampere's law.
According to this law the line integral (Product of field and length in same direction) of the magnetic field is equal to the current within the loop. Mathematically this can be written as
∮▒〖B ⃗.(dl) ⃗ 〗=μ_0 I
here gives the product of the length element dl (circumference) of the loop and the component of the magnetic field along the loop.
If the current is distribution is circularly uniform, the circular loop for which the magnetic field at all points equal in magnitude and parallel to it then ∮▒〖B ⃗.(dl) ⃗ 〗 is ...
Purchase this Solution
Free BrainMass Quizzes
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.
The Moon
Test your knowledge of moon phases and movement.
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.
Classical Mechanics
This quiz is designed to test and improve your knowledge on Classical Mechanics.
Intro to the Physics Waves
Some short-answer questions involving the basic vocabulary of string, sound, and water waves.