I'm not so sure how to begin with this problem. I was thinking of usign superposition. I think that the field on the conductor due to the parallel segments of the coil is zero, since Ampere's Law tells us that the field outside the solenoid is zero, right? For the perpendicular segments, I used...
Hi,
I've got a question regarding application of the Biot-savart law along finite wire.
There is a great explenation of this problem in the MIT paper but this does not cover one case.
1. Homework Statement
My question is: does the equation defining magnetic field in point P(x,y) also applies...
I am computing magnetic field around a thick conductor to do railgun force modeling. I am currently re-examining my magnetic field computation, and I have found some confusing results stemming from a fairly simple use of the Biot-Savart Law. The main issue is that the more nuanced application of...
Hello, and thanks in advance for taking a look at my question.
Generally, I am trying to make a railgun force model. Since railguns depend on the magnetic field created around the rails (and the resulting Lorentz force) I need to model the magnetic field created by the current that flows...
Homework Statement
Homework Equations
Biot-Savart's law and ampere's law expressing B = mu0 * I / (2 * pi * r)
The Attempt at a Solution
[/B]
I know that for the first drawing, we have magnetic fields going into the page from both of the wires, and we have them being (infinitely) long, so...
In Fluent, there are several 'pressure-velocity coupling' algorithms.
Why are these necessary when, in many fluid mechanics textbooks, it is proposed that for incompressible fluids, an equation for Pressure can be found by taking the divergence of the Navier-Stokes equation, and inverting using...
This isn't a homework problem, I have the solutions for this problem. I'm just wondering why, for question 3, letter a, part ii, it's necessary to use the Biot-Savart law instead of Ampere's law? What are the use cases for Biot-Savart law vs. Ampere's law...
When deriving the magnetic field strength due to a circular loop at some distance away from it's center (using Biot-Savart's law), why is the angle between ds and r 90 degrees?
This is a youtube video with the derivation, see 5:55
Homework Statement
The figure shows a cross section across a diameter of a long cylindrical conductor of radius a = 2.92 cm carrying uniform current 151 A. What is the magnitude of the current's magnetic field at the center of the conductor?
Homework Equations
Biot-Savart's Law
The Attempt...
Homework Statement
The figure shows two very long straight wires (in cross section) that each carry a current of 3.19 A directly out of the page. Distance d1 = 6.00 m and distance d2 = 4.00 m. What is the magnitude of the net magnetic field at point P, which lies on a perpendicular bisector to...
Guys, I'm having trouble with some concepts on the Biot-Savart Law. Lots of texts compare this law with Coulomb Law, but doesn't affirm that B-S is only applicable on a static case (constant current). What are the real physical conditions in which Biot-Savart Law can be directly applied? Does it...
Hello, all. I have been working on the following problem and was wondering if someone could check my work and provide some valuable input:
Here is my work:
What do you guys think about my approach to this problem?
I read everywhere about the formulas for calculating B at a point from a length of straight wire, or at a point from the centre of a closed loop.
But what about at a point over a closed loop that wasn't the centre? Is there a simple calculation for that?
Thanks
HI,
Some things I want to confirm, somethings I need to be reminded of:
So what I remember is that Magnetostatics - stationary charges
Electrostatics - constant or slow moving charges
And that an accelerating charge makes a magnetic field, but you need a time varying field to move charges.
So...
Homework Statement
Long wire is bent such that it forms two parallel line segments that goes to -∞ along the z-axis and a semicircle of radius (R). Find magnetic field on Z axis.
Homework Equations
Biot-Savart Law
(μ0/4π) I = ∫ dl' x R/ R^2
where dl' is element of length and R is the unit...
Hi to all of you,
As the Biot-Savart-Law is based on experimentations in air, i like to know how to calculate the magnetic flux density in material with much greater permeability, where the circular like shape of the field distribution troughout the vicinity does not apply.
Does anyone has a...