1. The hand rope is broken. If the hand rope is broken, you can replace it directly, which generally costs one or two yuan each.
2. The generator hand-operated plate buckle broke, so the hand-operated plate was replaced directly.
3. The hand-pulled plate is inelastic. The above is the reason why the gasoline engine cannot be fired but can be fired by opening the fire valve.
How to make a simple generator
I give you a coin, can you use it to generate electricity? able. Place one end of the copper wire of the earplug wire under the coin, twist the other end of the copper wire into a strand, heat it lightly over the candle fire, then immediately bring it to the coin and scratch it. At this time, the earplugs will make a "click" sound, which indicates that current is passing throughs earplugs.
As the two metals have different temperatures, when they come into contact they cause electrons to move in one direction and generate an electric current. This situation is called “thermoelectric power generation”.
So, can the friction of metal generate electricity?
First you find a plastic wand, rub it with the fur, then bring it close to the small pieces of paper, and the pieces of paper will be sucked up.
Rub a copper rod with fur, then bring the copper rod closer to the paper scraps. You will see that the scraps of paper will not move at all.
We know that if a rubbed object can attract light and small objects, it means it is charged; If it can't attract light and small objects, it means it's not charged. So, you must be wondering: Rubbed plastic chopsticks can bere charged, why can't the copper rods be charged after being rubbed? Could it be that rubbed metal cannot produce electricity? Don't rush to conclusions. Let's use the new method to carry out the previous experiment and see what results will appear.
Wrap several layers of plastic cloth around one end of the copper rod and hold it over the plastic cloth without touching the copper rod. At this time, the above experiment is repeated. Oddly enough, the copper rod can attract pieces of paper.
This experiment proves that as long as the copper rod is isolated from the human body (i.e. the earth), electricity can be generated by friction.
It turns out that plastic chopsticks and copper rods can generate electricity during the friction process. The difference is this: plastic chopsticks don'tdo not transfer load easily and the load generated by friction remains essentially at the original location; the copper rod can quickly transfer charge to other locations, although it can also generate electricity when rubbed. the charge is quickly transferred to the human body, and then transferred from the human body to the earth. After using a plastic cloth to separate the copper rod from your hand, the charge cannot escape and therefore exhibits electrical properties.
) Horseshoe magnet
(2) Cork (about 7 cm or 10 cm long)
(3) Needle plastic knit
p >(4) Fine wire
(5) 6 volt battery
(6) Wooden base (approximately 10 cm × 30 cm )
(7) 2 metal strips (approximately 12 cm × 2 cm)
(8) 2 rubber strips, flat head nails
(9 ) 2 screws, pliers
(10) Hammer and nails
Use a hammer and nails each timeDrill 4 holesnails at both ends of each metal strip, approximately 1.3 cm from the end. Snap one end of each metal strip at an angle about an inch from the head. These will be the feet of each support.
Use two screws to secure the metal strip to the base. The two metal bars must be in a certain position so that the plastic knitting needle can pass through the two holes on the metal bars, as shown in Figure 4. The needle must protrude about 1 inch outside each support hole. The needle should be able to move freely back and forth in its holder, and the cork should be able to rest easily between the two poles of the horseshoe magnet. Insert the needle into a hole in the holder and push it through the wood from the end. to finish. The center of the sheet.
Wrap the wire around the cap about 50 times to form a spool as shown in the picture. LeaveLeave about 3 inches of wire on each end. At the ends of the wires, peel off about ½ inch of insulation and use tape to secure the two wires to opposite positions on the pins. Do not let bare wires touch each other or put tape on them.
The stripped wire is used to connect the other two battery wires. Press two thumbtacks in two slightly spaced locations under the bare wire. Peel about ½ inch of insulation from one end of the other wire, bend the wire, and attach the elbow under the thumbtack with the stripped end of the wire on top. With the stripped end of the thread above the height of the needle and tight against it, do the same with the other thread and secure it under another thumbtack so that the stripped end of the thread is on the other side of the needle. The distance between the two bare threads should almost touch the needle (when both needle threads are in the up and down position). Attach the magnethorseshoe to the board so that the coil is tight in the horseshoe socket of the magnet. Remove some of the insulation from the remaining ends of the wires and connect them to the battery. Pull and turn the spool with your hands and the motor will spin on its own. This experiment may not work the first time, so keep adjusting your engine setup.