The magnetic field intensity of a current-carrying circular coil increases as we travel towards the center from the periphery.

The magnetic strength (dB) at location A due to current I flowing through a tiny element dl is directly proportional to the current, according to Biot Savart Law (I).

The magnetic field at the center of the circular coil is given by $B=\frac{{\mu }_o}{2}\frac{I}{r}$

Where B= strength of the magnetic field, I= current, r= radius or distance

The magnetic field produced by the circular coil is inversely proportional to distance, as seen above.

The magnetic field intensity increases as we get closer to the coil's center. As a result, option A is right.

This is due to the fact that the two magnetic fields from either end aid each other. The magnetic field is strongest at the coil's center.