Home » Electronics

Electronics

Different types of logic gates(AND,OR,NOT,NOR,NAND,XOR,XNOR)

What are universal logic gates? Digital systems: A digital systems deals with quantities or variable which have only two discrete values or states. The examples of such quantities are: A switch can be either open or close. A certain statement can be either true or false. The answer of a question can be either yes or no. A bulb can ...

Read More »

Difference between astable monostable and bistable multivibrator

what is multivibrator? The name mutivibrator designates a group of the circuits widely applied for switching as shift registers or temporary memories and as square were timing oscillator or clocks. These circuits are basically closed loop feedback circuits operating with the feedback. Types of multivibrator There are three general types of multivibrators, which are: The astable or free running mutivibrator ...

Read More »

Difference between forward and reverse biasing of semiconductor diode?

Forward Biasing definition The bias a diode,you apply a dc voltage across it. Forward bias is the condition that allows current through the pn  junction. A dc voltage source connected by conductive material (contacts and wire) across a diode in the direction to produce forward bias. This external bias voltage is designed as V BIAS. The resistor limits the forward current to a ...

Read More »

what is the difference between p type and n type semiconductors?

Difference between n type and p type semiconductors? Depending on the type of doping material used ,extrinsic semiconductors can be further subdivided into two classes: N- type semiconductors P-type semiconductors N-type semiconductors: This type of semiconductor is obtained when a pentavalent material like antimony (Sb) is added to pure germanium crystal.fig Each antimony atom forms covalent bonds with the surrounding ...

Read More »

Difference between conductors and insulators with examples

Conductors A conductor is a material that easily conducts electrical current.Most metals are good conductors.The best conductors are single element materials,such as copper(Cu),silver(Ag),gold(Au),which are characterized by atoms with only one valence electron very loosely bound to the atom.These loosely bound valence electrons become free electrons.Therefore,in a conductive material the free electrons are valence electrons. In terms of energy bands ,it ...

Read More »

what is difference between impedence and reactance?

Circuits with capacitors and inductors are more complicated than the resistive circuits we talked about earlier ,in that their behavior depends on frequency:A “voltage divider ” containing a capacitor or inductor will have a frequency dependent division ratio.In addition ,circuits containing these components (known collectively as reactive components),”corrupt” input waveforms such as square waves,as we just saw. However,both capacitors and ...

Read More »

Operational Amplifier (op-amp):types ,applications,modes & parameters

What is  Operational Amplifiers: Early operational amplifiers (op-amps) were used primarily to perform mathematical operations such as addition, subtraction, integration, and differentiation—thus the term operational. These early devices were constructed with vacuum tubes and worked with high voltages. Today’s op-amps are linear integrated circuits (IC s) that  use relatively low dc supply voltages and are reliable and inexpensive. The standard operational amplifier (op-amp) symbol ...

Read More »

Mosfet:types ,n & p channel mosfet switch

What is Mosfet? The Mosfet (metal oxide semiconductor field-effect transistor) is another category of field-effect transistor. The MOSFET, different from the JFET, has no pn junction structure ; instead, the gate of the MOSFET is insulated from the channel by a silicon dioxide (SiO2) layer. The two basic types of MOSFETs are enhancement (E) and depletion (D). Of the two types, the enhancement MOSFET is more ...

Read More »

Bipolar junction transistor(BJT):Applications & characteristics

What is transistor? A transistor is a semiconductor device used to amplify or switch electronic signals and electrical power.Or A transistor is a device that regulates current or voltage flow and acts as a switch or gate for electronic signals. Transistors consist of three layers of a semiconductor material, each capable of carrying a current. Bipolar Junction Transistor: The basic ...

Read More »

Kirchhoff’s voltage law definition problems and solutions

What is Kirchhoff’s Voltage Law? Kirchhoff’s voltage law is a fundamental circuit law that states that the algebraic sum of all the voltages around a closed path is zero or, in other words,the sum of the voltage drops equals the total source voltage. In an electric circuit, the voltages across the resistors(voltage drops) always have polarities opposite to the source ...

Read More »