A circular loop of one turn carries a current of 5.00 A. If the magnetic field B at the centre is 0.200 mT, find the radius of the loop.

Explanation

To find the radius of a circular loop carrying a current, we can use the formula for the magnetic field at the center of the loop:

\[ B = \frac{\mu_0 n I}{2R} \]

Where:
- \( B \) is the magnetic field at the center of the loop,
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