An electron enters a region of space containing a uniform 2.73 × 10-³ T magnetic field. Its speed is 125 m/s and it enters perpendicularly to the field. Under these conditions, the electron undergoes circular motion. Find the radius r of the electron's path and the frequency ƒ of the motion. r = m f = Hz

An electron enters a region of space containing a uniform 2.73 × 10-³ T magnetic field. Its speed is 125 m/s and it enters perpendicularly to the field. Under these conditions, the electron undergoes circular motion. Find the radius r of the electron's path and the frequency ƒ of the motion. r = m f = Hz