Question

How to determine the magnetic field due to a straight current-carrying conductor of finite size?

Answer 1

Integrate Biot & Savart law.

Answer 2

The magnetic field due dB due to an element dL carrying a steady current I at a point P at a distance r from the current element is \[dB=(\mu0/4\pi) I *((dL*r)/r ^{3}))\]

Answer 3

How about a conductor of finite size?

Answer 4

Integrate this vector expresion

Answer 5

There is another one...The magnitude of the mag field at a distance R from a long straight wire carrying a current I is given by \[B=\mu0I/2\Pi r\]

Answer 6

But this is the result for a wire of infinite length..

Answer 7

I am asking for finite length..

Answer 8

then magnetic field at point p is given by\[B = \mu o I/4 \pi r ( \sin a + \sin b )\]