Who knows how to light a small light bulb???

The small bulb will light up because of the tungsten wire and the small bulb. There is a very thin and curved tungsten wire in the bulb, and when the switch of the light is turned on, an electric current will enter the bulb through the wire, and when the current passes through the tungsten wire, the temperature of the tungsten wire will rise. When its temperature rises to a certain level, it releases heat and emits light, so the bulb is on.

Circuit: A conductive circuit in which an electrical circuit consists of metal wires and electrical and electronic components, called an electrical circuit. Add a power supply to the input of the circuit to create a potential difference at the input terminal, and it can work when the circuit is connected.

The presence of current can be detected by some instruments, such as voltmeter or ammeter deflection, bulb light, etc.; According to the nature of the current flowing, it is generally divided into two types: the circuit through which direct current passes is called a DC circuit, and the circuit through which alternating current passes is called an alternating current circuit. The simplest circuit is composed of power supply, electrical appliances (loads), wires, switches and other components.

When the circuit is on, it is called a path, and when it is disconnected, it is called an open circuit. Only in the path can there be an electric current passing through the circuit. A break in a circuit is called an open circuit or an open circuit.

If there is no load between the positive and negative poles of the power supply in the circuit and it is directly connected, it is called a short circuit, and this situation is never allowed. Another type of short circuit is when the two ends of a component are directly connected, and the current flows through the direct connection without passing through the component, which is called a short circuit of the component. An open circuit (or open circuit) is allowed, but the first short circuit is never allowed, because the short circuit of the power supply will cause the power supply to burn out, and the short circuit of the electrical appliance will lead to the occurrence of the phenomenon that the electrical appliances and meters cannot work normally.

The experimental process of making the small light bulb light up is as follows:

1. First of all, carefully install the battery in the battery box, and then carefully install the small bulb on the lamp holder.

2. One by one, the battery box with the battery, the lamp holder with the small bulb and the switch are teased with wires.

3. Finally, close the switch, and the small light bulb lights up.

4. After the experiment, the equipment needs to be disassembled.

5. Finally, put the equipment in order.

The scientific concept of the experiment of lighting up a small light bulb is beating:

1. The small bulb will only glow when the current flows through the filament.

2. Using electricity to light a small light bulb requires a complete circuit.

3. A complete circuit can be built using the same material and in more than one way.

4. The two ends of the battery are directly connected together with wires, and a short circuit will occur.

The principle of making the small bulb light up:

The structure of the bulb is very simple. At the bottom of it there are two metal contact points, which are used to connect electricity. There are two metal contact points that touch a thin gold mountain and a thick filament.

The filament sits on the bulb**, supported by a glass. The wire and filament are encased in a glass bulb filled with inert gas, usually argon inert gas, and when the bulb is connected to a power source, current flows from one of the contact points to the other and then to the wire and filament.

A large number of free electrons in the line current of a solid conductor move from the charged region of the negative electrode to the charged region of the positive electrode. During the vibration of the jumping electrons of the atoms may be temporarily pushed to a higher energy position. When they fall back to their original normal position, the electrons release additional energy in the form of photons.

The wiring diagram of the two small bulbs is as follows:

1. Series circuit: the components are connected one by one in order to form a circuit, in the series circuit, close the switch, the two bulbs shine at the same time, and the two bulbs are extinguished when the switch is disconnected, indicating that the switch in the series circuit can control all the electrical appliances.

2. Parallel circuit: the components are connected in parallel to form a circuit, and the current of the trunk circuit is divided into two parts in the branch, and flows through each element in the two branches respectively.

The four ways to light up a small light bulb are as follows:Step 1: As shown in the figure below, we need to draw a circle first.

Step 2: Use an eraser to erase the lines in the position shown in the image below.

Step 3: Draw two symmetrical arc shapes where the lines are erased.

Step 4: Connect the two sides with a slightly curved arc.

Step 5: At the bottom of the outline of the small bulb, draw a small semicircular arc.

Step 6: Draw four spiral circles in the shape of horizontal straight lines in the positions shown in the figure below.

Step 7: On the inside of the bulb, draw two diagonal lines, and draw a polygonal tungsten filament between the diagonal lines.

Step 8: Color the small light bulb with a colored pen prepared in advance.

The following steps are required to tap the tie button to light up the small bulb:

Prepare the materials: a small light bulb, a muffled battery, and a wire.

Connect both ends of the wire to the positive and negative terminals of the battery.

Connect the connection point on the macro bend of the small lamp with the positive pole of the battery, and connect the connection point on the side of the small bulb with the other end.

Once you have confirmed that the connection is correct, release your hand and the bulb will light up.

Note: During the connection process, make sure that the positive pole of the wire and the battery are connected, and the negative pole is connected, so that the small bulb can be lit up.

1 small bulb, 2 dry batteries, several wires are required.

The small light bulb can be lit up by doing the following:

1. Lead out two lines of the small bulb, as shown in the following figure:

2. Lead the battery out of two wires, as shown in the following figure:

3. Connect the wire as shown below, and the small bulb will light up

In this circuit, the battery, wires, and small bulbs form a complete closed loop, so the small bulbs can light up.

How to make the bulb glow:

1. Understand the working voltage and working mode of the bulb. For example, DC 5V.

2. Select the corresponding power supply, switch, and wire lamp according to the voltage of the bulb. For example, if you have a DC 5V bulb, find a 5V power supply.

3. Connect the bulb switching power supply, if it is an LED bulb, you also need to consider the polarity of the power supply, and the positive pole of the bulb is connected to the positive output of the power supply.

4. Close the switch and light the bulb.