Definition of Volt and Its Relation to Other Terms

The definition of volt can really blow your mind, seriously, for real. When we are talking about volt definition physics, there are going to be confusing terms and words. Sometimes, it is easier to show it through examples – the real examples on how the electric current works and flows. Most of us know that volt is a part of the electricity but what it is really about?

Definition of Volt

Definition of Volt, What Is It about?

You know that electricity has a potential energy and it is related to the volts units. When we are talking about the representation of how much potential energy within per unit charge, we are talking about voltage, generally symbolized with V. Voltage is a basic measurement of how much power or energy kept inside an electric circuit or field within a certain point.

When you want to move the electric charge from one post to another, you will have to perform a work within per unit charge needed to go against the electric circuit or the electric field. This power or potential is named after Alessandro Volta, an Italian physicist, who had understood the concept of electric potential and used it to invent the chemical battery. The definition of volt is always related to Volta as the man who had done the research of such a potential. His invention was the breakthrough in the world of science, anyway.

When we are talking about volts units, we are talking about the SI (Standard International) of electric potential force unit. The SI unit is generally represented through the calculation of 1 volt is similar to 1 joule per coulomb. One charge coulomb generates one joule of energy when there is a movement between two different locations. So, where there is a 12V between two different locations, a charge coulomb will generate 12 joules potential energy.

Discussing the volt definition physics may not be easy but it may be a bit simpler when there is another example from our daily life. Electric voltage, charges, and current are related to one another. Imagine a water tank that has an extending hose on the bottom of the tank. The water represents the electric charge. When there is more water, naturally, there will be more pressure. When there is more water, water that exits via the hose will have more energy (more charge, more energy). Naturally, when there is less water, the water will exit will less energy too. The water pressure represents the voltage. When there is more water stored within the container (meaning it has more pressure), there will be more voltage. So, more charge, more voltage.

Now that you have understood the definition of volt, what does it have to do with the current? Well, still related to the tank, imagine opening the hose. When you open the hose, the current from the water will flow, right? Well, depending on the pressure inside the tank, it will determine the speed of the flow. The more volt units you have (remember the water pressure?), the more current will be generated. In electricity, the flow of the current is represented with Ampere (amps, for short). So, more volts will lead to more amps.

But the science of volt definition physics doesn’t stop there. Don’t forget that the flow of the current depends on the resistance too. If we are still talking about the hose, it is about its width. The wider it is, more water will be able to pass through within a shorter time. A narrow hose will resist the flow. Well, the resistance in electricity is represented by ohms. According to the Ohm’s Law, current times resistance will result in voltage (I x R = V). Let’s say that you have a 16V battery with two ohms resistance, it means that your current is around 8A. If the resistance is around four ohms, it means that your current is 4A.

Understanding the terms and the concept of electricity isn’t easy. Grasping the idea and the definition of volt can be quite confusing too. That’s why it is always better that it takes real and direct practice in physics class to help you understand the concept.

The information about voltage, ampere, ohm, charge, volts units and such thing alike are around us, in our everyday life. If you want to really understand it, really grasp the idea and the concept. Later on, you can familiarize yourself with the voltage calculation – still related to the definition of volt.