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Found 158 Articles for Electrical Engineering
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What is SWR Meter? SWR meter stands for Standing Wave Ratio meter, it is a measuring instrument used to measure the standing wave ratio (SWR) in a transmission line or transmitter feeder. It is also known as VSWR or ISWR. There are different types of SWR meters available, however, the working principle of all the SWR meters is the same. In this article, we will discuss the SWR meter along with its working and applications. The SWR meter measures the degree of mismatch between a transmitter feeder and its antenna (load). This measurement is used to know the effectiveness ... Read More
9K+ Views
In electrical and electronics engineering, we must deal with measurable quantities. Therefore, as electrical engineers, we have to communicate in a standard language that all professionals can understand, irrespective of the country in which the measurement is performed. Such a standard language of measurement is the International System of Units or SI System. In this article, we will study the international system of units, types of SI units, and advantages and disadvantages of the SI system. What is the International System of Units? The international system of units, abbreviated as SI units, is a modern form of the metric system. ... Read More
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In electrical engineering, we frequently come across the following three voltage ratings related to electrical equipment and power system − Nominal Voltage Rated Voltage Operating Voltage In this article, we will discuss all these three terms related to the voltage rating of electrical systems. What is Nominal Voltage? The term nominal voltage means named voltage. The nominal voltage is defined as the voltage value assigned to an electric circuit or system to designate its voltage class. In simple words, the voltage level of an electrical power system is called the nominal voltage of the system. It is also ... Read More
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What is Ionization Energy? The minimum amount of energy that an electron in an atom requires to come out of the influence of the nucleus is called ionization energy. In other words, the measure of difficulty that an electron faces in removing from an atom or ion due to nuclear forces is called the ionization energy. Therefore, the ionization energy gives the measure of strength or binding force by which an electron is held in an atom or ion. Ionization energy is sometimes also known as ionization potential. Alternatively, the amount of energy supplied to an isolated atom to extract ... Read More
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According to the electron theory of matter, we know that all matter (solid, liquid, or gas) is made of tiny particles called molecules. A molecule in turn is made up of atoms. Thus, atoms are the basic building blocks of all matter. An atom consists of a central part called the nucleus, and a space around the nucleus called the extranucleus. The nucleus of an atom contains two particles namely a proton and neutron, while the extra-nucleus contains electrons that revolve around the nucleus in a certain path called the orbit. The electrons in the last orbit are called the ... Read More
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What is Electric Charge? The physical property of a substance that causes charged substance to experience a force when placed in an electromagnetic field is called electric charge. In other words, electric charge is the physical property of the subatomic particles of matter due to which matter shows electrical behavior. Electric charge is represented by the symbol Q (or q, ). Electric charge is a conserved property, which means the net charge of a closed remains constant. Electric charge can be of two types namely positive charge and negative charge. The positive charge is the charge carried by protons, while ... Read More
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The slow movement of something toward an object is termed as drift. The average velocity of electrically charged particles in a material under the influence of an electric field is called the drift velocity. In this article, we will learn in detail about drift velocity, carrier mobility, and drift current. What is Drift Velocity? When a voltage is applied across the ends of a conducting wire, an electric field is applied at every point of the copper wire. Due to this electric field, the free electrons in the conductor wire experience a force that accelerates them toward the positive end ... Read More
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Electric circuits are classified into two main types namely series circuit and parallel circuit based on the arrangement of components in the circuit. A series circuit is one in which the components are chain connected, while a parallel circuit is one in which all the circuit components are connected between two common points. Series circuits and parallel circuits act as voltage divider circuits and current divider circuits, respectively. Read through this article to find out more about Current Division Rule and Voltage Division Rule. Current Division Rule A parallel circuit acts as a current divider as it divides the total ... Read More
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In this article, we shall discuss electrical conductance and conductivity, its definition, formula, unit of measurement, and the solved numerical examples. What is Electrical Conductance? The measure of how easily the electric charge (or electrons or electric current) can flow through a material is called the conductance or electrical conductance of that material. Therefore, electrical conductance defines the capability of a substance to conduct electricity. In order to understand the concept of electrical conductance, we have to recall the electrical resistance of materials. Electrical resistance is defined as the measure of difficulty that a material offers in the flow of ... Read More
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The branch of engineering that deals with the study of design and implementation of various electrical devices and systems used in our everyday life as well as generation, transmission and distribution of electrical power is popularly known as Electrical Engineering. Electrical engineering primarily convers the study of electric circuits, power systems, electrical machines, power electronics, control system, and many more. Electrical engineering uses formulae and mathematical equations to explain and prove the truth of concepts. These formulae and equations are very useful in understanding the behavior of electrical systems and helps to perform the different calculations in practice. This article ... Read More
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