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Articles by Manish Kumar Saini
Page 36 of 80
Energy Stored in a Capacitor – Formula and Examples
A capacitor is an electronic circuit component that stores electrical energy in the form of electrostatic charge. Thus, a capacitor stores the potential energy in it. This stored electrical energy can be obtained when required. Ideally, a capacitor does not dissipate energy, but stores it. A typical capacitor consists of two metallic plates separated by an insulating material, called dielectric. When these two metallic plates of the capacitor are connected to a source of electrical energy, the capacitor starts charging and stores electrical energy in its dielectric. Therefore, it is important to derive the expression of this stored energy in ...
Read MoreCharging of a Capacitor – Formula, Graph, and Example
A capacitor is a passive circuit component used in electrical and electronic circuits to introduce capacitance. The capacitance is defined as the property of a substance by which it stores electrical energy in the form of electrostatic field. A typical capacitor consists of two metal plates which are separated by a dielectric material. It is the dielectric material that has ability to store electrical energy in the form of electrostatic charge. The process of storing electrical energy in the form of electrostatic field when the capacitor is connected to a source of electrical energy is known as charging of capacitor. ...
Read MoreDifference between DIAC and TRIAC
In electrical and electronics engineering, regulating and controlling of the electric power delivered to the load is very important to reduce the wastage of electrical energy. This can be achieved by using DIAC and TRIAC which are two different types of power semiconductor devices.DIAC and TRIAC are used to control the AC power supplied to the load. Both DIAC and TRIAC can operate at high voltages and currents. Both these devices belong to the thyristor family, having p-n-p-n structure. But, DIAC and TRIAC are also different from each other in many ways. Read through this article to find out the ...
Read MoreWhat is Electrical Impedance?
Electrical impedance is the measure of opposition produced by circuit elements in the path of alternating current. Therefore, the electrical impedance is the parameter related to the AC circuit. The electrical impedance is usually denoted by the symbol ‘Z’ and is measured in ohms $\mathrm{(\Omega)}$. The electrical impedance is a complex quantity, i.e. it has both magnitude and phase. The electrical impedance is basically the extended concept of resistance. It is the function of frequency of alternating current flowing in the circuit. It because the impedance comes into picture only when there is a frequency dependent element like inductor or ...
Read MoreWhat is the Plum Pudding Model of the Atom?
There were several theories stated to explain the arrangement of subatomic particles. The Plum Pudding Model, also known as Thomson’s Plum Pudding Model, is also a scientific model for explaining the arrangement of subatomic particles. This model was first proposed by a British physicist Sir J. J. Thomson in 1904. This model was stated soon after the discovery of the electron, but prior to the discovery of the nucleus of the atom. According to the plum pudding model, "a volume of positive charge surrounds electrons in an atom, like negatively charged plums embedded in a positively charged pudding." Hence, it ...
Read MoreBasic Circuit Elements – Resistor, Inductor and Capacitor
In electrical and electronics engineering, we frequently come across two terms "circuit" and "circuit element". Where, an electric circuit element is the most elementary building block of an electric circuit, and the electric circuit is an interconnection of different circuit elements connected in a fashion so they form a closed path for current to flow. Technically, an electric circuit element is the mathematical model of an electrical device and can be completely characterized by its voltage and current relationship. Also, a circuit element being the most basic building block cannot be subdivided into other devices. There are three most basic ...
Read MoreBasic Electrical Quantities – Charge, Current, Voltage, Power and Energy
In electrical and electronic circuits, there are five major electrical quantities that used to analyze circuits. These quantities are electric charge, electric current, voltage, electric power and electrical energy. In this article, we shall learn about these quantities in detail. What is Electric Charge? Electric charge or simply charge is the property of subatomic particles like protons and electrons. The electric charge is denoted by symbol Q or q and measured in Coulombs (C). Technically, electric charge is the concept which explains the electrical behavior of materials. Therefore, it is the electric charge that forms the basis of existence of ...
Read MoreBasic Logic Gates – Definition, Types, Boolean Function, and Truth Table
In digital electronics, basic logic gates are the important components of all digital devices and systems. A logic gate is a digital circuit whose operation is based on the Boolean function. Thus, logic gates are used for performing different logical operations on binary inputs to produce a binary output. Therefore, we can simply state that logic gates are the basic building blocks of digital devices and systems. All digital systems like computers are able to perform very complex logic operations, and these operation are performed by the interconnected system of basic logic gates. This interconnection of logic gates to perform ...
Read MoreElectron Theory of Matter and Atoms
The electron theory of matter is one of the most successful and experimentally proved theory that can explain the nature of electricity. Although the study of electricity has been attracting the attention of scientists for several hundred years, and there were several experiments and theories developed to understand the nature of electricity. The only theory that has explained it successfully is the electron theory of matter. The electron theory of matter is the result of experiments and researches conducted by many scientists like J. J. Thomson, R. A. Millikan, Earnest Rutherford and Bohr. This article is meant for explaining the ...
Read MorePower in AC Circuit – Active Power, Reactive Power, Apparent Power
In electrical and electronic circuits, the power is one of the most significant quantities used to analyze the circuits for practical applications. The electrical power defined as the time rate of expanding or absorbing energy in a circuit, i.e., $$\mathrm{Power, P=\frac{Energy \;expanded\; or\; absorbed (𝑊)}{Time(𝑡)}}.....(1)$$ This article is meant for explaining power relations in AC circuits. Where, an AC circuit is one which is excited from a source alternating voltage. Instantaneous Power in an AC Circuit The value of electric power in an AC circuit measured at a certain instant of time is known as instantaneous power. It is generally ...
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