BJTs are three-terminal semiconductor devices used for switching and amplification of signals. MOSFETs, on the other hand, are four-terminal semiconductor devices used for switching applications. Read through this article to find out more about BJTs and MOSFETs and how they differ from each other.What is BJT?BJT stands for Bipolar Junction Transistor. It is a type of transistor in which the current flow is due to two types of charge carriers viz. electrons and holes. A BJT consists of three alternating layers of P-type and N-type semiconductor materials and two P-N junctions. The BJT has three terminals viz. emitter (E), base ... Read More

Semiconductor devices are extensively used in the field of electronics. A semiconductor is a substance whose resistivity lies between conductors and insulators. Semiconductors have negative temperature co-efficient. The resistance in semiconductors increases with the decrease in temperature and vice versa. The conducting properties of a semiconductor changes, when a suitable metallic impurity is added to it.In this article, we will highlight the major differences between intrinsic and extrinsic semiconductors by considering different parameters such as doping level, conductivity, charge density, etc.What is an Intrinsic Semiconductor?A semiconductor material in its pure form is known as an intrinsic semiconductor. Thus, the intrinsic ... Read More

Electrical engineering deals with the study of how to generate, transmit and utilize the electrical energy. Electronics engineering, on the other hand, deals with the study of how to control and switch the flow of electrical energy in a circuit. Go through this article to find out the other major differences between electrical and electronics engineering.What is Electrical Engineering?Electrical engineering is the branch of engineering which deals with the generation, transmission, distribution and utilization of electrical energy.Electrical engineering is also concerned with study and design of electrical machines. The field of electrical engineering provides solutions for problems in various fields ... Read More

Bipolar Junction Transistor (BJT) and Insulated Gate Bipolar Transistor (IGBT) are two types of transistors that are used in electronic circuits to control the currents. Read through this article to get an overview of how BJTs and IGBTs function and the major differences between them.What is BJT?BJT stands for Bipolar Junction Transistor. The BJT is a three layer, three terminal semiconductor device which is used in the electronic circuit for switching and amplification of signalsA BJT is formed by sandwiching either a P-type or N-type material between two layers of N-type material or P-type material respectively. Thus, based on the ... Read More

An adder circuit is one of the important digital circuits used in computers, calculators, digital processing units, etc. There are two types adder circuits named half-adder and full-adder. Both the half adder and the full adder circuits are used to perform addition and also widely used for performing various arithmetic functions in the digital circuits.Read through this article to find out the basics of half adders and full adders and how they function.What is a Half Adder?A combinational logic circuit which is designed to add two binary digits is known as half adder. The half adder provides the output along ... Read More

Power transformers and Distribution transformers are extensively used in power systems for stepping up and down the voltage level for various applications such as transmission and distribution. Read through this article to find out the major differences between power transformers and distribution transformers and how they function.What is a Transformer?A Transformer is a static electrical machine which changes the level of voltage and current in a circuit without changing the frequency of the supply. Transformers works on the principle of electromagnetic induction.Based on the design, operation, purpose of use, transformers are classified into different types such as auto-transformer, current transformer, ... Read More

Both conductors and insulators are extensively used in various fields of electrical and electronics engineering. In this article, we will compare and contrast the various features of conductors and insulators and how they function.What is a Conductor?The material which allows the electric current to pass through it is known as conductor. In other words, the material which has less than 4 electrons in its outermost shell is known as conductor.When electric potential is applied across a conductor, the electrons can freely move from atom to atom. In a conductor, the valance band and the conduction band are overlapped each other. ... Read More

LED lamps consume less energy as compared to Halogen lamps. LED lamps are cost efficient too. Read through this article to find out the major differnces between LEDs and Halogen lamps and how they function.What is LED Lamp?An electric lamp which produces light by using light emitting diodes or LEDs is known as an LED lamp or LED light bulb. An LED lamp works on the principle of electroluminescence, i.e. it emits the light due to the interaction of an electric field with a suitable solid.Basically, an LED is a specially doped PN junction diode which is made of special ... Read More

Both analog and digital circuits are extensively used in various fields of electrical and electronics engineering for signal processing. Go through this article to find out how analog and digital circuits function and how they differ from each other.What is an Analog Circuit?An analog circuit is a type electronic circuit that can process any analog signal or data and produce an output in analog form. Analog circuits are composed of resistors, inductors and capacitors, etc.The type of signal which is a continuous function of time is known as an analog signal. All the real-world signals are the analog signals, therefore, ... Read More

Both BJTs and FETs are transistors widely used in different types of electronic applications. Go through this article to find out the important features of BJTs and FETs and how they differ from each other in the way they function.What is BJT?BJT stands for Bipolar Junction Transistor. The BJT is the type of transistor in which the current flow is due to two types of charge carriers viz. electrons and holes. A BJT consists of three alternating layers of P-type and N-type semiconductor materials and two P-N junctions.When P-type semiconductor material is sandwiched between two N-type layers, the bipolar junction ... Read More