The wires are always enameled wires, all copper wires, and the internal resistance should be low.
It doesn't matter how big the magnet is, the important thing is that the permanent magnet is a little smaller than the inner ring of the coil, or just about the size.
Voltage changes, calculated using E=BLV, B is the magnetic flux, L is the line length and V is the speed.
The thickness of the wire determines the current flow.
P=UIX efficiency
Output power=P total-P coil=I square when no load R line-I square current R line when load is added
It's probably like that. Note that there is an efficiency issue in doing this. Wind energy may not be completely converted into current and voltage. Second, manufacturing and details will affect voltage and current. For example, the distance between the magnet and the coil, etc.
What is the principle of a hydroelectric generatore (water turbine)?
It can be completed most quickly by hand.
Find a motor that was removed from an electric toy using a 6V battery, then find an old mechanical alarm clock, disassemble the movement and remove the pendulum, second hand gear, gear alarm and spring. . Find a suitable gear inside based on the required speed (the minute hand or gear one step slower than the minute hand will do it). Take it out and try to put it on the motor shaft, then design a suitable bracket to connect it). the motor gear to that when removed. Re-engage the mesh gear and remove any gears that are faster than this gear.
Make a rocker and insert it on the winding shaft to shake it so that the motor can rotate at high speed. Use a multimeter with a DC voltage of 10 V to measure the polarity and voltage ofthe electricity emitted. It should be around 5V to 6V. Depending on the charging current of the mobile phone, a resistor can be connected in series to charge the mobile phone.
The fixed bracket is randomly designed for easy portability and manual start-up.
I made one for outdoor sports, mainly to prevent the phone from running out of power and losing contact with the outside world in places without power supply. The output is connected to the USB interface. It's a shame that the voltage is a little lower. Some cell phones can be charged, but others cannot.
The principle of a hydroelectric generator (water turbine) is that when water circulates through the turbine, the energy of the water is converted into mechanical energy. The rotating shaft of the turbine drives the generator rotor, which converts mechanical energy into electrical energy and produces it.
The firstThe world's first hydroelectric power station was built in France in 1878. America's first hydroelectric power station was built in Wisconsin, United States, in 1882, using a direct current generator. After 1889, three-phase alternators began to be used. Since then, the capacity of a single machine has increased rapidly. In 1890, it was only 15,000 kW. By 1955, it could produce 105,000 kW generators. Before 1949, the capacity of a single unit of Chinese-made hydraulic generators did not exceed 200 kW. After 1949, the automobile industry developed vigorously. In 1958, it was able to produce a single 72,500 kW unit. In 1972, a double unit of 300,000 kW. -An internal water cooling water generator has been produced. The world's leading large-capacity hydroelectric generators are the 718,000 kVA stator water-cooled semi-umbrella hydroelectric generator of the hydroelectric power station.Grand Coulee stator hydroelectric generator and the 737,000 kVA water-cooled stator hydroelectric generator of Itaipu Hydroelectric Power Station. Cold semi-umbrella hydroelectric generator, 700,000 kVA air-cooled umbrella hydroelectric generator of Guli Hydroelectric Power Station and 800,000 KW hydroelectric generator of Xiangjiaba hydropower station.