28.33) A closely wound, circular coil with a diameter of 3.00 {\rm cm} has 670 turns and carries a current of 0.520 {\rm A}.1. What is the magnitude of the magnetic field at the center of the coil? (B= ? T)2.What is the magnitude of the magnetic field at a point on the axis of the coil a distance of 9.30 {\rm cm} from its center? (B= ? T)
