Difference Between Voltage and Current: Definitions and Key Characteristics

Hello.
I have a question, what is the difference between voltage and current. Please answer specifically.

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The voltage occurs when no load is connected, and when a load (resistance) is connected to the voltage, the current will flow through this load. I know that I am not a translator, but maybe you will understand

adisos wrote:

Hello. I have a question, what will the voltage and current decrease. Please answer specifically.

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I admit that an interesting topic - for philosophers. so provocative


what is the difference between ??? everything and nothing
It's just like a woman and a man. it is a human being, but a different one, although it is a bad comparison, unless you add a parameter, e.g. age

More specifically, these are the two terms for "magic force", such an electromotive force. The current is Amperes and the voltage is Volts

if you want to define (name, explain) a light, you must use at least two parameters - the color of the light and its brightness.
and how to show the difference between color and brightness ???

You need to change your approach to these concepts. The vividly defined terms, eg "turn on the electricity", automatically connects both "releasing" the current and applying voltage.

in the end it could be an explanation based on the flow of water, but I would put it like this:
voltage is the amount of water in a closed body of water (e.g. a water pipe welded into a square) and current is the speed at which water flows in the pipe.

Another
the force with which you inflict a blow (e.g. a punch) and the speed with which you do it (1 second or half a second)

Although I cannot forgive you the specific spelling of a fairly popular word, I will try to explain the difference between the above-mentioned terms.

A colleague did it quite vividly marek003 .
I can only add to this that if we use the comparison to the river here, then the intensity of the current (shortly - current) can be imagined as the current of the river, i.e. its ability to carry and drag it.
Tension is the difference in levels of this river.

To confirm the words WP I recommend the following "rules":
Rated (current): http://www.daktik.rubikon.pl/Slowniczek/el_natezenie_pradu.htm " target="_blank" rel="nofollow noopener ugc" class="postlink inline" title="" > http://www.daktik.rubikon.pl/Slowniczek/el_natezenie_pradu.htm
Voltage: http://www.daktik.rubikon.pl/Slowniczek/el_napiecie.htm " target="_blank" rel="nofollow noopener ugc" class="postlink inline" title="" > http://www.daktik.rubikon.pl/Slowniczek/el_napiecie.htm

The post was reported.
I transferred from: Other

Electric current - the ordered (directed) movement of electric charges.

Electric voltage - the difference in electric potentials between two points of an electric circuit or electric field.

The intensity of the current (commonly referred to as electric current) is a physical quantity characterizing the flow of electric current, defined as the ratio of the amount of electric charge flowing through a given surface to the time of the flow of the charge. In the case of conductors, the surface is the conductor cross-section.

I quoted from http://pl.wikipedia.org/wiki/Strona_główna

Just think a little before asking a question in the forum.

Translation on an example as for a newborn:
voltage-amount of water
flow-pressure of water

Moderated By Marek_Skalski:

This is a wrong translation.
The voltage (U) can be compared to the pressure (p) in hydraulic systems. For the very fact of the existence of pressure, there is no useful work.
The intensity of the current (I) corresponds to the flow (Q) because it is the movement of the working medium that does the work.
The power (P) in both cases is the product of the intense value and the extensive value; here P = U x I or P = px Q.

I would write exactly the opposite -
Highway -
The speed of the cars is VOLTY
Their number is AMPERY.

from wikipedia:

Electric voltage - the difference in electric potentials between two points of an electric circuit or electric field. The electrical voltage is the ratio of the work performed during the transfer of the load between the points for which the voltage is determined to the value of the load. Assuming that the carried load is so small that it does not affect the environment.

In the case of an electrical voltage (current) source, it is its most important parameter and determines the ability of the electrical energy source to perform the work. The voltage at the voltage source is lower than the electromotive force of the source by the voltage drop across the resistance inside the source (internal resistance).

If the two ends of a voltage source are connected by a conductor, current flows through the conductor. One end of the battery continuously transmits electrons to the conductor, while the other end also continually receives these electrons. The current flow is caused by voltage, which is the potential difference between the ends.

The unit of voltage is the volt (V) and the symbol for voltage in the physical equations is U.

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Electric current - the ordered (directed) movement of electric charges.

The quantity describing the electric current is the intensity of the electric current I, which is defined as the ratio of the electric charge q that flows through the cross-section of the conductor to the time t of the flow of this charge


The SI unit of electric current is the ampere [A].

The intensity of the current I can also be expressed as the number of charges flowing through the surface S, having a velocity v

where: n - concentration of current carriers expressed by their number per unit volume (moving in the same direction), q - charge of each carrier, v - carrier velocity components in the direction perpendicular to the surface S, through which the current flows with intensity I.

Very often the term electric current is used interchangeably with electric current intensity.

In continuous media, electric current is described by giving the current density that describes the charge flow through a unit surface. Unlike the current intensity, which is a scalar and not assigned to a point in space, the current density is a vector, and the spatial distribution of the current density is called the current density field.


The movement of the charge is caused by the movement of charged particles (or pseudo-particles) called current carriers. The carriers of electric current can be electrons, ions or holes, i.e. empty places after electrons. Only electrons move freely in metals, therefore the electric current in metals is the movement of conduction electrons. In semiconductors, electrons and holes are the current carriers. In diluted gases, electrons and ions are electric charge carriers.

I often see the following questions in the forum for beginners: What can I measure with the meter? What is current and what is voltage? I do not know if these are genuine questions or provocations, but if someone in their teens asked a really such question, they did not learn anything from the answer. It is not easy for children to understand certain concepts, they are abstract to them. Therefore, some examples must be given to understand this. Current can be likened to water flowing in a pipe, and voltage to height difference of pipes. If the ammeter is a box with two holes and a vane inside, you know you have to cut the circuit to measure the water flow. I think this is how you can explain the resistance in the circuit and the power of the source. Why, for example, 15 kV on a moped candle is not as dangerous as 230V in the network. Maybe such examples will discourage beginners from checking the meter in a power outlet? As for spelling errors: I've seen this advice: read, read, read! Why not use a text editor? Greetings.

Moderated By Marek_Skalski:

Bravo buddy! You have dug up a topic that has been closed for 14 years. If you'd still write something meaningful ... He would explain the concept of intense and extensive greatness ...

3.1.11. Don't post messages that add nothing to the discussion. They are misleading, dangerous or do not solve the user's problem.
3.1.19. Do not send messages on archival topics if this is another question, in particular other than the questioning person. Out of respect for the questioner, create your own topic. You can only add a solution to the problem.

adisos wrote:

I have a question, what is the difference between voltage and current. Please answer specifically.

The book by ABC Radioamator Czesław Klimczeski is very good.
But YT will be enough as a last resort.

Way to go! That's what you had to explain to the boy at the beginning of the post! If someone else becomes interested in the topic "what is electricity?", They will watch a movie and maybe something "skum". But if there are 10 answers and each one is wiser than the previous one, the questioner will not read it, let alone understand it.

Only in 2006 (when the author asked the question) there were no such videos
I wonder if these translations were of any use to him after so many years