Question

A circular loop of wire with a diameter of 25.935 cm is in the horizontal plane and carries a current of 14.171 A counterclockwise, as viewed from above. What is the magnetic field, in microTeslas, at the center of the loop?

Answer 1

Answer tab

First, for us to have a better understanding, let us draw the situation:

The magnetic field in the middle of a single coil is given by:

$B=\frac{\mu_0i}{2R}$

Replacing our values, we get:

$B=\frac{4\pi *10^{-7}*14.171}{25.935*10^{-2}}=68.66\mu T$

Thus, our answer is B=68.66uT