February 19, 2017

Homework Help: physics

Posted by Jessica on Tuesday, April 8, 2008 at 9:47pm.

Consider a long wire where the current density is not uniform but instead increases as you approach the center of the wire, so that at a distance r from the center the current density is J(r)= I/ 2PiRr. Find the magnetic field strength both inside and outside of this wire.
I know I need to use biot-savart law, but im not sure how to do this with a non uniform density

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