Recent content by mastertan

Ah I get it now. Thanks very much for helping me out.

Is it -infinite and +infinite?

I haven't put in the limits. I wasn't too sure what to do.

Homework Statement Using the Biot Savart Law dB = (u0*i*ds X r)/(4*pi*r^3) *X is cross product show that the magnetic field due to an infinitely long straight wire carrying a current i ampere is given by B = (u0*i)/(2*pi*r) Homework Equations Hint: integral...