What is the rotational speed of the coil in alternating current and what is the relationship between it and angular velocity

What is the rotational speed of the coil in alternating current and what is the relationship between it and angular velocity

A cycle T of alternating current is a positive half cycle and a negative half cycle
A rectangular line passes through a magnetic field and rotates 360 degrees for a period
The reciprocal of the number of complete cycles t in one minute is frequency f, in Hz
f=1/T
Speed can only determine the period, not the frequency