Voltage Produkte und Dienstleistungen
Many translated example sentences containing "voltage" – German-English dictionary and search engine for German translations. Lernen Sie die Übersetzung für 'voltage' in LEOs Englisch ⇔ Deutsch Wörterbuch. Mit Flexionstabellen der verschiedenen Fälle und Zeiten ✓ Aussprache und. Englisch-Deutsch-Übersetzungen für voltage im Online-Wörterbuch lesamisvttistes.be (Deutschwörterbuch). Übersetzung Englisch-Deutsch für voltage im PONS Online-Wörterbuch nachschlagen! Gratis Vokabeltrainer, Verbtabellen, Aussprachefunktion. voltage Bedeutung, Definition voltage: 1. the force of an electric current, measured in volts: 2. the force of an electric current.
The systems are getting smaller and using lower voltages. high-voltage power lines. COBUILD Advanced English Dictionary. Copyright. Übersetzung Englisch-Deutsch für voltage im PONS Online-Wörterbuch nachschlagen! Gratis Vokabeltrainer, Verbtabellen, Aussprachefunktion. voltage Bedeutung, Definition voltage: 1. the force of an electric current, measured in volts: 2. the force of an electric current.
Voltage VideoVoltage // She's Gone Like The Wind
Likewise, if the automobile's battery is very weak or "dead" or "flat" , then it will not turn the starter motor. The hydraulic analogy is a useful way of understanding many electrical concepts.
In such a system, the work done to move water is equal to the pressure multiplied by the volume of water moved. Similarly, in an electrical circuit, the work done to move electrons or other charge-carriers is equal to "electrical pressure" multiplied by the quantity of electrical charges moved.
In relation to "flow", the larger the "pressure difference" between two points potential difference or water pressure difference , the greater the flow between them electric current or water flow.
See " electric power ". Specifying a voltage measurement requires explicit or implicit specification of the points across which the voltage is measured.
When using a voltmeter to measure potential difference, one electrical lead of the voltmeter must be connected to the first point, one to the second point.
A common use of the term "voltage" is in describing the voltage dropped across an electrical device such as a resistor. The voltage drop across the device can be understood as the difference between measurements at each terminal of the device with respect to a common reference point or ground.
The voltage drop is the difference between the two readings. Two points in an electric circuit that are connected by an ideal conductor without resistance and not within a changing magnetic field have a voltage of zero.
Any two points with the same potential may be connected by a conductor and no current will flow between them.
The various voltages in a circuit can be computed using Kirchhoff's circuit laws. When talking about alternating current AC there is a difference between instantaneous voltage and average voltage.
Instantaneous voltages can be added for direct current DC and AC, but average voltages can be meaningfully added only when they apply to signals that all have the same frequency and phase.
Instruments for measuring voltages include the voltmeter , the potentiometer , and the oscilloscope. Analog voltmeters , such as moving-coil instruments, work by measuring the current through a fixed resistor, which, according to Ohm's Law , is proportional to the voltage across the resistor.
The potentiometer works by balancing the unknown voltage against a known voltage in a bridge circuit. The cathode-ray oscilloscope works by amplifying the voltage and using it to deflect an electron beam from a straight path, so that the deflection of the beam is proportional to the voltage.
A common voltage for flashlight batteries is 1. Inside a conductive material, the energy of an electron is affected not only by the average electric potential, but also by the specific thermal and atomic environment that it is in.
When a voltmeter is connected between two different types of metal, it measures not the electrostatic potential difference, but instead something else that is affected by thermodynamics.
The terms "voltage" and "electric potential" are ambiguous in that, in practice, they can refer to either of these in different contexts.
The term electromotive force was first used by Volta in a letter to Giovanni Aldini in , and first appeared in a published paper in in Annales de chimie et de physique.
However, a clear definition of voltage and method of measuring it had not been developed at this time. From Wikipedia, the free encyclopedia.
For other uses, see Voltage disambiguation. For other uses, see Potential. This article needs additional citations for verification.
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A model attribution edit summary Content in this edit is translated from the existing Norwegian Wikipedia article at [[:no:Elektrisk spenning]]; see its history for attribution.
For more guidance, see Wikipedia:Translation. Batteries are sources of voltage in many electric circuits. Electrical network. Covariant formulation.
Electromagnetic tensor stress—energy tensor. Main article: Volt. Main article: Hydraulic analogy. Main articles: Galvani potential , Electrochemical potential , and Fermi level.
Electronics portal. Alternating current AC Direct current DC Electric potential Electric shock Electrical measurements Electrochemical potential Fermi level High voltage Mains electricity an article about domestic power supply voltages Mains electricity by country list of countries with mains voltage and frequency Ohm's law Ohm Open-circuit voltage Phantom voltage.
Paris and F. Hammond, Electromagnetism for Engineers , p. Feynman; et al. II Ch. Retrieved 4 December Medical practice management MPM software is a collection of computerized services used by healthcare professionals and Disaster recovery as a service DRaaS is the replication and hosting of physical or virtual servers by a third party to provide Cloud disaster recovery cloud DR is a combination of strategies and services intended to back up data, applications and other A crisis management plan CMP outlines how to respond to a critical situation that would negatively affect an organization's Hot plugging is the addition of a component to a running computer system without significant interruption to the operation of the A kilobyte KB or Kbyte is a unit of measurement for computer memory or data storage used by mathematics and computer science Home Topics Computer Science Electronics voltage.
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We'll send you an email containing your password. Your password has been sent to:. Please create a username to comment. May I just say I find it absolutely ridiculous to define a term using such esoteric language.
Basically, one assumes, to be able to understand this, one must already be a well trained electrician or engineer, which is ironic as voltage seems to be a very basic term in their field.
So in order for to learn about it, one must already be it. If you wanted to attract more users to this site, you would define your terms in less technical language so one can actually learn something.
I found this helpful, but it would be nice if it were contrasted with the other measurements of electicity, such as amperage and current. Even Britannica does not have 'Direct voltage' or 'Alternating voltage' definitions.
Most of the definitions I have came across would mention direct or alternating current not voltage. Are you completely sure the way you phrase it is correct?
Great article btw. Pls feel free to contact me if any question. Best Regards, Mila Wang Email: milawang Search Compliance risk assessment Risk assessment is the identification of hazards that could negatively impact an organization's ability to conduct business.Beschleunigungsspannung f. Der Baustein basiert auf der proprietären, eigens für das Kapazitätsmanagement von Bleiakkus konzipierten Impedance Track-Technik des Unternehmens. Russisch Wörterbücher. Bulgarisch Wörterbücher. Sobald sie Green Panda Pc den Vokabeltrainer übernommen wurden, sind sie auch auf anderen Geräten verfügbar.
In an electrical system power P is equal to the voltage multiplied by the current. The water analogy still applies.
Take a hose and point it at a waterwheel like the ones that were used to turn grinding stones in watermills. You can increase the power generated by the waterwheel in two ways.
If you increase the pressure of the water coming out of the hose, it hits the waterwheel with a lot more force and the wheel turns faster, generating more power.
If you increase the flow rate, the waterwheel turns faster because of the weight of the extra water hitting it. In an electrical system, increasing either the current or the voltage will result in higher power.
Let's say you have a system with a 6-volt light bulb hooked up to a 6-volt battery. The power output of the light bulb is watts.
So, you can rearrange the equation to solve for I and substitute in the numbers. What would happen if you use a volt battery and a volt light bulb to get watts of power?
So, this latter system produces the same power, but with half the current. There is an advantage that comes from using less current to make the same amount of power.
The resistance in electrical wires consumes power, and the power consumed increases as the current going through the wires increases.
You can see how this happens by doing a little rearranging of the two equations. What you need is an equation for power in terms of resistance and current.
Let's rearrange the first equation:. What this equation tells you is that the power consumed by the wires increases if the resistance of the wires increases for instance, if the wires get smaller or are made of a less conductive material.
But it increases dramatically if the current going through the wires increases. So, using a higher voltage to reduce the current can make electrical systems more efficient.
The efficiency of electric motors also improves at higher voltages. This improvement in efficiency is what drove the automobile industry to consider switching from volt electrical systems to volt systems in the s.
As more cars shipped with electric-powered amenities — video displays, seat heaters, "smart" climate control — they required thick bundles of wiring to supply enough current.
Switching to a higher-voltage system would provide more power with thinner-gauge wiring. This means we need to add another term to our model:.
It stands to reason that we can't fit as much volume through a narrow pipe than a wider one at the same pressure. This is resistance. The narrow pipe "resists" the flow of water through it even though the water is at the same pressure as the tank with the wider pipe.
In electrical terms, this is represented by two circuits with equal voltages and different resistances. The circuit with the higher resistance will allow less charge to flow, meaning the circuit with higher resistance has less current flowing through it.
This brings us back to Georg Ohm. Ohm defines the unit of resistance of "1 Ohm" as the resistance between two points in a conductor where the application of 1 volt will push 1 ampere, or 6.
This is called Ohm's law. Let's say, for example, that we have a circuit with the potential of 1 volt, a current of 1 amp, and resistance of 1 ohm.
Using Ohm's Law we can say:. Let's say this represents our tank with a wide hose. The amount of water in the tank is defined as 1 volt and the "narrowness" resistance to flow of the hose is defined as 1 ohm.
Using Ohms Law, this gives us a flow current of 1 amp. Using this analogy, let's now look at the tank with the narrow hose. Because the hose is narrower, its resistance to flow is higher.
Let's define this resistance as 2 ohms. The amount of water in the tank is the same as the other tank, so, using Ohm's Law, our equation for the tank with the narrow hose is.
But what is the current? Because the resistance is greater, and the voltage is the same, this gives us a current value of 0.
So, the current is lower in the tank with higher resistance. Now we can see that if we know two of the values for Ohm's law, we can solve for the third.
Let's demonstrate this with an experiment. For this experiment, we want to use a 9 volt battery to power an LED. LEDs are fragile and can only have a certain amount of current flowing through them before they burn out.
In the documentation for an LED, there will always be a "current rating". This is the maximum amount of current that can flow through the particular LED before it burns out.
The LED introduces something called a "voltage drop" into the circuit, thus changing the amount of current running through it.
However, in this experiment we are simply trying to protect the LED from over-current, so we will neglect the current characteristics of the LED and choose the resistor value using Ohm's Law in order to be sure that the current through the LED is safely under 20mA.
For this example, we have a 9 volt battery and a red LED with a current rating of 20 milliamps, or 0. To be safe, we'd rather not drive the LED at its maximum current but rather its suggested current, which is listed on its datasheet as 18mA, or 0.
If we simply connect the LED directly to the battery, the values for Ohm's law look like this:. Dividing by zero gives us infinite current!
Well, not infinite in practice, but as much current as the battery can deliver. Our circuit should look like this:.
We can use Ohm's Law in the exact same way to determine the reistor value that will give us the desired current value:. So, we need a resistor value of around ohms to keep the current through the LED under the maximum current rating.
Here's what our device looks like all put together. We've chosen a resistor value that is high enough to keep the current through the LED below its maximum rating, but low enough that the current is sufficient to keep the LED nice and bright.
You'll often need to use Ohm's Law to change the amount of current flowing through the circuit. With this setup, instead of having to choose the resistor for the LED, the resistor is already on-board with the LED so the current-limiting is accomplished without having to add a resistor by hand.
To make things a little more complicated, you can place the current limiting resistor on either side of the LED, and it will work just the same!
Many folks learning electronics for the first time struggle with the idea that a current limiting resistor can live on either side of the LED and the circuit will still function as usual.
Imagine a river in a continuous loop, an infinite, circular, flowing river. If we were to place a dam in it, the entire river would stop flowing, not just one side.
Now imagine we place a water wheel in the river which slows the flow of the river. It wouldn't matter where in the circle the water wheel is placed, it will still slow the flow on the entire river.
This is an oversimplification, as the current limiting resistor cannot be placed anywhere in the circuit ; it can be placed on either side of the LED to perform its function.
For a more scientific answer, we turn to Kirchoff's Voltage Law. It is because of this law that the current limiting resistor can go on either side of the LED and still have the same effect.
For more info and some practice problems using KVL, visit this website. Now you should understand the concepts of voltage, current, resistance, and how the three are related.
The majority of equations and laws for analyzing circuits can be derived directly from Ohm's Law. By knowing this simple law, you understand the concept that is the basis for the analysis of any electrical circuit!
See our Engineering Essentials page for a full list of cornerstone topics surrounding electrical engineering.
Take me there! These concepts are just the tip of the iceberg. If you're looking to study further into more complex applications of Ohm's Law and the design of electrical circuits, be sure to check out the following tutorials.
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Development Single Board Comp. Contributors: CTaylor. Electricity Basics When beginning to explore the world of electricity and electronics, it is vital to start by understanding the basics of voltage, current, and resistance.
Electrical Charge Electricity is the movement of electrons. The three basic principles for this tutorial can be explained using electrons, or more specifically, the charge they create: Voltage is the difference in charge between two points.