In this article, you will know what is
voltage or electric voltage and the unit of voltage that is a volt.
We will also discuss AC voltage, DC voltage, or AC DC voltage,
and actually, voltage is a high voltage or low voltage.
We will also define some related terms which are, common mode voltage, RMS voltage, voltmeter, and use of a voltmeter.
If you're like most people, the word "voltage" probably doesn't mean
much to you. But if you're an electrician or an engineer, it's a very important
concept.
Voltage is said to be the difference
in electric potential between two points. In other words, it's the force that
drives electrons from one point to another.
Without voltage, there would be no electricity. So next time you flip on a
light switch or plug in your laptop, remember voltage!
What is voltage?
Voltage, electric potential difference, electromotive force, or “pressure” is
the difference in electric potential between two points. The voltage between
two points is measured in volts (V).
Voltage can be found in many places; for example, a common 9-volt battery has a
voltage of 9 volts. A 120-volt wall outlet has a voltage of 120 volts. An
electrocardiogram (EKG or ECG) measures the voltage between two electrodes
placed on the skin.
In an electric circuit, voltage provides the force that pushes electrons
through the wires and around the circuit. The amount of voltage in a circuit is
determined by the type of battery or power source being used.
Short Definitions
·
It is the difference
of potential between two-point charges that’s why it is also called Potential
difference.
·
The force or pressure
required for the flow of charges is called voltage.
·
It is the force
required for the motion of electrons, so it is also called Electro-Motive Force.
The history of voltage
In the field of electrical engineering, voltage, electric potential difference,
electric pressure, or electric tension (but more commonly just voltage) is the
difference in electric potential energy between two points per unit charge.
The voltage between two points is equal to the
work done per unit of charge against an electrostatic force to move the test
charge between two points. This is measured in units of volts (V).
Voltage
can be caused by static electric fields, electromagnetic radiation, the current flowing through a magnetic field, or formed naturally by living cells.
How voltage is used today
In our homes, we use voltage to power our lights and appliances. Voltage is
also used in industry to power machinery. In fact, voltage is an important part
of our lives and is essential to the functioning of many of the devices we use
every day.
The measure of the potential difference between two points is called a voltage. For current to flow, there must be a potential difference, or voltage, between
the two points. The higher the voltage, the greater the potential difference,
and the more current will flow.
Today, voltage is generated in power plants and then transmitted over
high-voltage power lines to our homes and businesses. Once it reaches our
homes, the voltage is reduced so that it can be used to power our lights and
appliances.
The physics of voltage
Voltage is a measure of the potential energy difference between two points. It
is often used to describe the difference in electric potential energy between
two points in a circuit. The voltage between two points is equal to the work
done per unit charge as the charge moves from one point to the other.
Formula of Voltage
V = IR
Where V is the voltage applied to any circuit, I
is the current flowing in that circuit and R is the resistance of that circuit.
Unit of Voltage
In
SI units, voltage is measured in volts which are denoted by V.
Volt
The
applied voltage to any circuit is said to be 1 volt when 1-ampere current passes
through a resistance of one ohm in that circuit.
How Voltage is Measured
The voltmeter is an electrical device, which is used to measure the voltage.
The mathematics of voltage
In simple terms, voltage is the "pressure" that pushes electrons
around a circuit. It's analogous to water pressure in a pipe: the higher the
voltage, the greater the "pressure," or energy per unit charge.
AC and DC Voltage
The standard unit of voltage is the volt (abbreviated V), which represents one
joule (J) of energy per coulomb (C) of charge. In alternating current (AC)
circuits, the voltage varies with time; in direct current (DC) circuits, it's
constant.
To get a feel for how voltage relates to other electrical quantities, let's
consider two everyday examples: batteries and light bulbs.
The applications of voltage
Voltage is a key electrical parameter that is used in a variety of
applications. It is a measure of the potential difference between two points in
an electrical circuit and is typically expressed in volts.
Voltage can be used to:
- power electric motors
- power lamps
- activate relays
- provide heating
The dangers of voltage
Voltage is a measure of the potential difference in an electrical circuit. It
is measured in volts (V), and it indicates the amount of energy that can be
transferred between two points in a circuit. The higher the voltage, the more
energy can be transferred.
However, voltage is also a measure of the potential for danger in an electrical
circuit. Too much voltage can cause electrical components to overheat and fail,
and it can also be a shock hazard for people working with the circuit. That's
why it's important to always use the correct voltage for your application and
to follow all safety procedures when working with electricity.
Importance of voltage
Voltage is an important concept in electricity, and it has a wide range of
applications in our daily lives. It is a measure of the electrical potential
difference between two points in a circuit, and it is expressed in volts. The
higher the voltage, the greater the potential difference between the two points.
In the future, the voltage will continue to play an important role in our lives. It
will be used to power our homes, our appliances, and our electronic devices. The voltage will also be used to generate electricity for our transportation needs.
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