The magnitude of the magnetic field of a circular loop of current-bearing wire at the geometric center of a loop of radius r is proportional to A) 1/r. B) 1/r². C) 1/r³. D) 1/r⁴.

Question

Quizplus · Accepted Answer

The magnitude of the magnetic field at the center of a circular loop of current-bearing wire is directly proportional to the inverse of the radius (1/r), according to Biot-Savart law.

The Magnitude of the Magnetic Field of a Circular Loop