Found 1006 Articles for Electronics & Electrical

Electronics is the branch of engineering which deals with the study of devices that function due to the movement of electrons. Based on types of signals used and voltage or current or power ratings, the electronics can be broadly classified into following categories viz.Analog ElectronicsDigital ElectronicsPower ElectronicsIn this post, we will take a close look at analog electronics and digital electronics and the major differences between them by considering various parameters like definition, type of signal used, current voltage rating, applications, etc.What is Analog Electronics?Analog electronics is the branch of electronics that deals with the electronic systems and devices with ... Read More

In electrical and electronics engineering, the communication is defined as the process of broadcasting, transmitting, storing or viewing the data and information using electronic devices and circuits.Based on the nature of signals and devices used for processing the information, the electronic communication can be classified into following two types −Analog CommunicationDigital CommunicationIn this post, we will take a look at the major differences between analog communication and digital communication by considering various parameters such as basic definition, cost, hardware technology, noise, power requirement, need of modulation, applications, etc. Also, a short description of analog communication and digital communication is added ... Read More

In electrical and electronics engineering, the closed path followed by the electric current is known as electric circuit. Every electric circuit is composed of many circuit components such as sources of power, resistors, capacitors, inductors, diode, etc. Therefore, the circuit components are the basic building blocks of an electrical or electronic circuit.Depending upon the power delivering or absorbing ability, the circuit components can be classified in following two types −Active componentsPassive componentsThe most significant difference between active components and passive components is that an active component can supply power to an electric circuit, whereas a passive component cannot deliver power, ... Read More

In electronics engineering, a number of semiconductor switching devices are there such as diode, transistor, SCR, GTO, IGBT, etc. The BJT and UJT both are the types of transistors used for switching application in different electronic circuits.Since both UJT and BJT are the transistors, however, there are many differences between the two devices. One major difference between UJT and BJT is that the UJT is a unijunction transistor that can only be used as a switch in an electronic circuit, while the BJT is a bipolar junction transistor that can be used as a switch as well as an amplifier ... Read More

Potentiometer and voltmeter are both types of measuring devices used to measure the voltage. However, one most significant difference between the potentiometer and the voltmeter is that the potentiometer is used for measuring the EMF of a source while the voltmeter is used to measure the potential difference (or voltage) between two points in a circuit.The other differences between voltmeter and potentiometer are given below in the tabular form. Also, a short description of voltmeter and potentiometer is added for the better understanding of the differences.What is a Potentiometer?A potentiometer is a three-terminal measuring instrument used to measure the unknown ... Read More

A switch is the most common device used in everyday life for turning on and off the electrical appliances. A switch can make or break a circuit. The electric current can flow in a circuit till the switch is in ON state. The switches are commonly used to turn on and off various electrical appliances like fans, lamps, coolers, ACs, etc.There are a number of switches available, but in this article, we will only discuss about the one-way switch and two-way switch and the key differences between the one-way switch and two-way switch.What is a One-Way Switch?A one-way switch is ... Read More

In electrical power system, various devices are used to ensure the safe operation of electrical equipment. The most important set of these devices that helps to ensure this safety is switchgears. Amongst these switchgears, the circuit breakers and isolators are commonly used in every electrical power system. These two devices are very important in an electrical power system.The isolator and circuit breaker both have a similar function of disconnecting the electrical circuits when there is an issue in electrical system. Therefore, they are closely related to each other, however, there are many differences between circuit breaker and isolator that draw ... Read More

An electric circuit is the interconnection of circuit elements which carries the electric power from the source to the load. Sometimes, the electric power (or voltage or current) in the circuit may increase suddenly, which cause damages of the load or other devices in the circuit. Therefore, in order to protect the electric circuit and appliances from getting damaged due to abnormalities in the circuit, two protecting devices viz. fuse and circuit breaker are used in the circuit.In this article, we will discuss about the differences between fuse and circuit breaker. Also, we will add a brief description of both ... Read More

Contactor and relay are both electromagnetic switches that are designed to provide switching and controlling functions in the electric circuits. The primary function of both relay and contactor is similar, but there are many differences between them that are listed in the table below.The major difference between these two devices is that a relay is suitable for voltage and current applications, whereas a contactor is suitable for high voltage and current applications. Relays and contactors are both switches which are operated electrically for providing switching and controlling of the circuit.This article will provide all the noticeable differences between a contactor ... Read More

In electrical engineering, a transformer is a static electrical machine which is employed for transforming the level of alternating voltage, i.e. for stepping-up and stepping down the voltage, for transmitting the electric power from generating station to utility points.The transformer changes the level of alternating voltage without changing its frequency. The transformer works on the principle mutual inductance. A typical transformer consists of two windings one is primary winding and the other is secondary winding. The input supply is connected to the primary winding of the transformer, while the transformed output is taken from the secondary winding, also the load ... Read More