# Magnetic Field Calculation

*Most recent answer: 02/21/2008*

Q:

A long straight wire carries a current of 8A.a portion of the wire is then bent into a circular loop(1 turn) of radius 0.02m. Find the magnitude and direction of the net magnetic field at the center of the loop?

- sammy (age 21)

accra, Ghana

- sammy (age 21)

accra, Ghana

A:

We don't do homework problems on this site but try to explain things. This problem illustrates the idea of superposition of solutions to static fields: a linear combination of several field configurations is also a solution of the basic field equations. In this case it's a sum of a circular loop and a straight wire. I'm sure you can do it yourself.

LeeH

LeeH

*(published on 02/21/2008)*