First there is magnetism, or magnetism, why the hell!
If the generator has no load, no power consumption unit and is an open circuit, then it will also be cut off but there will be no power.
If the generator has a load, the magnetic lines of force are cut and the electrons at the negative point of the conducting copper wire begin to flow. The rotor generated during the flow exerts force and the generator consumes. mechanical energy, and efficiency depends on the load. Haha Yu's opinion
Electricity originally existed in nature. Later, people gradually studied it and were finally able to produce it themselves.
Electricity is produced by an electromagnetic induction generator using magnets and coils, which was researched and invented by Faraday.
Electricity used today can be roughly divided into electricity generated by generators andelectricity converted from chemical energy (such as batteries). In addition, electricity is also produced from sunlight, and other methods of generating electricity are still under development. ?
Of course, the electricity used in homes is produced by generators. ?
Now let’s talk about the principles of electricity generation! ?
To produce electricity, you need magnets and coils that generate electricity. ?
Magnets have a magnetic force that attracts iron and other metals. The range reached by this force is called the magnetic field. ?
Move the coil in this magnetic field and the coil will generate electricity. However, in a strong magnetic field, if the coil cannot be moved (without causing a change in magnetic force), electricity cannot be produced. ?
In other words, changes in magnetic forceetic cause the coil to generate electricity. This principle is called electromagnetic induction and the current generated is called induced current. ?
When the magnet is close to the coil, current will flow to the coil in the direction of the arrow. ?
Conversely, if the magnet is moved away from the coil, current will flow in the opposite direction of the arrow. Of course, if the magnet is not moved, the magnetic field will not change and no electricity will be generated. ?
This electromagnetic induction can also be used in a simple generator for bicycles. ?
If you install a generator on the tire of a bicycle, the magnet inside the generator will rotate with the help of the rotation of the tire. At this time, the strength of the magnetic field near the coil changes, which can cause an induced current to flow to the coil. ?
This is the principle of electricity production, which can turn on the bicycle lights. ?
Thiswhich is closely related to electricity generation, it is the generator of the power company. ?
Hydroelectric power generation uses hydraulic power to turn a propeller mounted on a generator, replacing the rotation of bicycle tires, causing the magnet to rotate and produce electricity. ?
Thermal or nuclear power generation first uses a boiler or atomic furnace to create high temperatures, then uses the heat to evaporate water to produce steam. These vapors are sprayed towards the turbine installed on the generator. to produce electricity. The machine runs to produce electricity.