Question 248: Magnetism and Matter

Question

A current $$I$$ flows along the length of an infinitely long, straight, thin walled pipe. Then

Accepted Answer

There is no current inside the pipe. Therefore
$$\oint {\overline B .\overline {d\ell } }  = {\mu _0}I$$
$$I=0$$
$$	herefore$$ $$B=0$$

Answer

the magnetic field at all points inside the pipe is the same, but not zero

Answer

the magnetic field is zero only on the axis of the pipe

Answer

the magnetic field is different at different points inside the pipe

Answer

the magnetic field at any point inside the pipe is zero

Magnetism and Matter