Know the parts of the magnetron. In order to define a magnetron, you should know what its different parts do. The basic parts of the magnetron are the anode, the cathode and the antenna. The anode is a large ring within the magnetron. It has an even number of vanes, which resemble metal barriers, and cavities, or open spaces, which extend inward. The cathode is the small ring at the center of the magnetron. It is also known as the filament or the heater. The cathode emits electrons. The antenna is a device that goes from the anode to a single cavity.
Distinguish between the directions of the electric and magnetic fields within the magnetron. The direction of the electric field is perpendicular to the direction of the magnetic field. The electron travel from the cathode to the anode, while the magnetic field travels from one side of the cathode to the other.
Analyze how the magnetic field affects the path of the electrons. The magnetic field interacts with the path of the electrons, causing them to rotate around the cathode, rather than traveling straight to the anode.
Provide examples of how the magnetron is used. Magnetrons are used within microwaves and in devices that are used for radar.