Small capacity power sources can use batteries, and there are now supercapacitors that can also store electrical energy; if the power is high, you can use a pumped storage power plant, which uses a motor to pump water to a high place; , and when electricity is needed, the energy from the water is sent back through the generator again.
Alternating current cannot be stored directly. It must first be bridge rectified and transformed into direct current, then it can be stored in the battery.
How to make a manual generator:
Preparing materials: small toy engine, wooden board, round pencil tip, latex, elastic, Small bulb, triangular in steel.
Operation steps:
1. First fix the small toy motor on the wooden board, take a 6mm round pencil tip, repull the lead core and use a triangular steel to form. a belt Oops, make a small pulley, as shown in the picture below.
2. Use latex to glue the small pulley onto the small motor. Make a large pulley from two layers of wood as shown in the picture below.
3. Fix the large pulley on the wooden board and install the crank. Put the rubber band on the small pulley and the big pulley, as shown in the picture below.
4. Connect the small bulb to the two wiring points of the small motor and quickly shake the large pulley handle to make the small motor generate electricity to light the small bulb. completed, as shown in the figure below. Display.