The generator used on the tractor is AC.
Alternating current[lt?r?ne?t][?k?r?nt, ?k?r-]), called AC. Alternating current is also called "alternating current" or "alternating current" for short. Generally refers to the voltage or current whose magnitude and direction changes periodically with time. Its most basic form is sinusoidal current. When electromagnetic induction was discovered, a method of generating alternating current was discovered. The first finished products were developed by Michael Faraday and Polit Pixie. Among them, Hippolyte Pixii manufactured the first alternating current motor in 1832 based on the principles of Michael Faraday.
"Direct current" (DC for short), also known as "constant current", constant current is a type of direct current, which is a direct current that does not change in size and of management. discovered by Edison. In 1747, Franklin of the United StatesUnis proposed the law of conservation of charge based on experiments and defined the terms positive and negative electricity.
Principle of weakly magnetic generator:
The principle of motor: the conductor moves in the magnetic field and cuts the magnetic lines of force.
Current generation conditions:
①?Conductor.
②? Magnetic field.
③?
Low magnetic field generator: It is a low magnetic force motor.
Weakly magnetic generator, equipped with
①?Conductor.
③ Exercise.
② The magnetic field is weak and cannot generate the required electricity, so external conditions are needed to strengthen the magnetic field.
That is: excitation - exciting magnetic field (strengthening), which requires a battery.
In summary:
The low magnetic field generator requires a battery (excitation) to produce electricity.