The series circuit is broken by a lamp, why is the series line, the light is on normally, and the li

In series circuits:

One light is short-circuited, the other lights will not be short-circuited, and there is still current in the circuit.

When one light is broken, the entire circuit is broken, and the other lights are not on, but not necessarily open.

In parallel circuits:

A short circuit or open circuit of a lamp has no effect on other electrical appliances in the circuit, because they are all in the branch circuit, incoherent drops of each other If the lamp is interrupted in the dry circuit, then the whole circuit is broken, this ......It seems to be called a mixed union).

If one light is short-circuited, the other lights will not be short-circuited, (because there is still current in the circuit), one light will be broken, and the other lights will be broken (because the circuit is broken, there is no current in the circuit, so the other lights will not be on).

In parallel and series circuits:

One light is short-circuited, and the other lights will not be short-circuited.

If one light is off, neither will the others.

Short circuits and open circuits are relative to themselves and have no effect on other lights.

In a series circuit: one lamp is short-circuited, and the other lamps will not be short-circuited

If one light is off, the others will be off

In parallel circuits: one lamp is short-circuited, and the other lamps will be short-circuited.

If one light is off, the other lights will not be off

In series circuits:

One lamp is short-circuited, and the other lamps are not short-circuited, provided that there are two or more lights, otherwise the circuit will be short-circuited.

When one light is broken, the whole circuit is in an open state, and the other lights are not on, not the other lights are broken.

If one light is short-circuited, the other lights will not necessarily be short-circuited.

If one light is broken, the other lights will definitely be broken.

If one light is short-circuited, the others will be short-circuited.

If one light is off, the other lights will not be off

Why is the series line, the lights are on normally, and the lights are off completely.

Hello dear! We'll be happy to answer for you. In series line, the lamp is normal, the lamp is turned off and completely off is caused by the malfunction of the leakage circuit breaker, check the insulation of the load side of the leakage circuit breaker, if the insulation is too low to the ground, the leakage current will be generated, so that the leakage protector does not malfunction.

If there is no problem with the line, replace the leakage switch. There are two main reasons for the single-phase electricity to trip as soon as the light is turned on: First, there is a short trembling dust road in the line.

Second, there is leakage in the line.

With the increasing demand for light bulbs, there are more and more black-hearted bulb manufacturers on the market. Since many people are buying light bulbs for the first time, it is easy to buy some low-quality products. But most of the time, poor quality bulbs will break the filament.

So, is the broken filament a short circuit or an open circuit? How to choose the best bulb? Let's find out together!

1. Is the filament broken short circuit or open circuit?

Opening. Because after the filament is disconnected, there is no place for the current to circulate, so this phenomenon is an open circuit. Under normal circumstances, the filament of a light bulb cannot be repaired after it is broken, so you can only go to the mall to buy a new bulb and replace it.

2. How to choose the best bulb?

1. Select the brightness.

In daily life, many young people mistakenly believe that the brighter the bulb, the better the quality, but this idea is wrong. Because the brightness of the bulb actually has little to do with its quality. But when you are choosing a light bulb, you have to choose the right brightness according to your own pursuit.

In addition, energy-saving lamps consume much less power than ordinary incandescent lamps, so you can choose according to this.

2. Color temperature. In most people's eyes, the light emitted by a light bulb is white. The colors that are directly visible to the practical eye will show different colors depending on the color temperature.

In general, the closer the light color is to the blue, the higher the color temperature. And the closer the light color is to red, the lower its color temperature. In fact, the bulb with the red spectrum is more suitable for us to use, because this kind of light is very suitable for both work and life.

Summary: The above has introduced to you whether the filament is broken is a short circuit or an open circuit and how to choose the best bulbs, I hope to give you some small help. If you want to know more about filament, you can lock Qeeka Home again.

This light will go out, and then the other lights will become brighter or even burn out.

To correct it, if the tungsten wire is burned, it is an open circuit, not a short circuit. A short circuit is when the two wires of the bulb are connected directly together, and the current does not pass through the tungsten wire.

Let's talk about the image.

A short circuit means that the current does not pass through the appliance, and the shortcut goes directly to the back. Short circuit is dangerous, because the short circuit will cause excessive circuit current, which will overload other electrical appliances, and in serious cases, it will burn out other electrical appliances, and it will cause disasters.

Circuit breaking means that the line is disconnected, and the current cannot pass, and there is no current. Of course, other electrical appliances will go on strike if there is no current, but it is generally not dangerous.

That light doesn't come on, if there is only one light it will short-circuit, if there are more than two other lights will come on, maybe a little brighter.

It's not a big problem, the lights strung with it will be a little brighter, but it's also possible that it will burn out if it's too bright.

It depends on the specific circuit.

The series circuit lamp is that each lamp in the circuit bears the voltage of the entire circuit, such as a short circuit of a lamp, or the voltage of the lamp should be added to other lamps on the other series circuit, if the voltage is exceeded, it will cause the lamp to burn out, open circuit or short circuit, that is, the lamp does not light up or continues to burn out the lamp.

It's fine, it's just that the light doesn't come on. If this is the only consumer in the circuit, the power supply will be burned because the short-circuit current of the power supply is too large.

If there is only one consumer, the entire circuit is short-circuited.

If there are multiple consumers, the current in the circuit will increase.

The light won't be on, and if there are other electrical appliances with large resistance connected to the circuit, the impact is not great, but the circuit current becomes a little larger.

The power, current, and voltage of the other (electrical appliances) will become larger.

Because on the same series circuit, voltage, resistance and current are all equal.

According to you, it should be which bulb where the current goes first and which bulb comes on first, right?

If, according to what you said, there are 3 bulbs, when you reach the first light first, the first light is on, and the back light is not on, it means that the first light and the last two lights are not connected in series, but in parallel circuits, and they can be lit by a single circuit. Even if the contact of the back circuit is not good, the first light can be lit first, if, the 3 bulbs are really connected in series, as long as the contact of one bulb is not good, the current does not pass, and all the bulbs will not light up. I don't know if you get it.

If you are in the building area at night, you will find that when the power goes out in the building area, the lights of all residents are not extinguished together, but in order, and when the call comes, the lights are also turned on in turn. Why is that?

Because the whole building is a series circuit, and the switch switch of each household is equivalent to a parallel circuit switch, when all the parallel circuit switches are on, the whole floor is actually a large series circuit. The reason why there is a sequential phenomenon of lights on and off is that when the voltage is constant, the current will be weakened by the wire (resistance) in the process of passing through the wire (which is also resistive), and the longer the wire through which the voltage needs to pass, the greater the resistance received. The first user to reach the current will turn on the light first, and the last to reach the current will be the last to turn on.

You can't see it when you do a small experiment. It's only when you have the kind of opportunity to see a power outage in a building, or when you see a collective power outage in the countryside.

When the current flows from the positive electrode to the negative electrode, the whole circuit is not turned on, so the front lamp will not be on, when it flows to the negative pole and the circuit becomes a path, all the lights in the series circuit are on at the same time.

It's not that the current flows like this as you say, in fact, the movement of the charge is very slow, but the moment the power is turned on, the charge on the circuit moves, so it looks like the speed of light travels, and the current is like this!

The direction of the current is artificially prescribed. Physically, the direction of the current is defined as the direction in which the positive charge moves directionally. Charge refers to the free charge, the free charge in the metal conductor is also called free ion, in the acid, alkali, salt of the aqueous solution is positive and negative ions.

But it is actually the movement of electrons that forms an electric current. Mechanism of Electron Movement The movement of electrons is not what we think.

It moves in an electric field, and the establishment of an electric field is instantaneous, which means that as long as there is a voltage at both ends, a wire will be filled with an electric field, and the electrons everywhere will move immediately. There will be no first, last.

Because when the switch is disconnected, the three small bulbs do not glow, and when the switch is closed, the three small bulbs all glow normally If the three lights are connected in series, the switch can control the three bulbs to turn on and off at the same time; If the three bulbs are connected in parallel, if the switch is on the dry road, the switch can also control the three bulbs to turn on and off at the same time, so the three bulbs may be connected in series or in parallel

Therefore, choose D

Answer: D Analysis: The switch in the series circuit can control all electrical appliances in any position; In parallel circuits or mixed circuits (both series and parallel appliances), the trunk switch can control all the electrical appliances in the circuit (assuming that only the trunk circuit is not sensitive).

In a series circuit, one of the two lamps is open, and the other lamp will be particularly bright when the wire is connected to the open circuit, and it will soon burn out as well.

This is because the original voltage is "shared" by two lamps, if it is a lamp of the same specification, each lamp only shares half of the voltage, and now a lamp is short-circuited with a wire, then all the voltages will be added to that good lamp, and the lamp will be particularly bright and will soon burn out.

You can think of the series circuit of two lamps like this, think of this circuit as a straight line, the straight line is at the part of the light bulb, and the line is broken, so things can't pass through this straight line, but you connect a wire from this broken place, although the third says that the light is broken, the light bulb is isolated, and then it is equivalent to restoring this line.

A. In a series circuit, there is only one path of current, so as long as there is a disconnection, there is no current everywhere, so A is correct;

B, in the series circuit, the current has only one path, as long as a lamp is short-circuited, the circuit is still judged to be the path, its filial piety and spring more than each lamp can also shine, and brighter, so Qiao resistant B error;

c. The electric lights on the road are turned on and off together, and when one of the lights is broken, it does not affect the work of the other bulbs, so they are connected in parallel; Therefore c is wrong;

D. The electrical appliances in the parallel circuit do not affect each other, so D is wrong so choose A