Homework Statement
Please see attached image file
I understand everything in this problem except I don't know how they got (1/4) in the area of a coil.
Can someone explain this? I have googled it and I am not getting a clear answer.
I thought the area of a coil could be (pi(r)^2)L...
By this you mean that the point P is actually only a distance of L/2 from the centers of any of the wires right? Do we assume that we are measuring the contribution of each of the wires from the center of the wires?
Hi there I am just really confused as to how they arrived at the answer to this problem. I attached a picture of the entire question and the solution.
Homework Statement
Please see attached file. Homework Equations
Biot Savart Law for Magnetism of a Wire where the length of wire is much...
Hi. I am currently a sophomore attending UT Austin and majoring in Physics. Over the past year I have become very discouraged. I am not doing as well as I expected to do. I remember when I was young and I had straight D's and C's in elementary school ... I then turned this around and became a...