Md Nazmul Islam

Admit it; we all hate the dark. We don’t like going into dark or dim places as it is what most people regard as “scary.” It’s not just for little kids either. Even adults can wag their tails between their legs (if they had any, lol). Most of us...

Electric motor is one kind of electro-mechanical machine which converts electrical energy to mechanical energy. In this article (electric motor ), we are going to discuss the following things: Types of motors Motor structure Motor torque Motor opposite voltage or Back EMF Motor Winding Shunt Winding Series winding Motor RPM ...

In this article, I would like to discuss an introduction on industrial automation and types of industrial automation. Industrial Automation The basic mean of automation is to become a system automatic, mean it complete all over given task automatically, the definition of the automation to Analyze and control all the process...

Working principle of semiconductor diode https://www.youtube.com/watch?v=JNi6WY7WKAI&t=1s Working principle of semiconductor diode We know that a diode is a two terminal semiconductor device that conducts current primarily in one direction. A diode has low resistance in one side where current can pass easily and high resistance in the other where current can't pass. A...

Working principle of induction motor https://www.youtube.com/watch?v=LtJoJBUSe28 Working principle of induction motor:  An induction motor is an AC electric motor which the electric current in the rotor needed to produce torque is obtained by electromagnetic induction from the magnetic field of the stator winding. It is commonly used that also call the...

Inverter working principle https://www.youtube.com/watch?v=qVeERT4nyz8  Inverter working principle Inverter working principle: An inverter is an electronic device that changes direct current to alternating current. We should remember that inverter never produces any power, the power is provided by the DC source. In most of the cases, the input DC voltage is usually lower. We...

Transistor working principle https://www.youtube.com/watch?v=7ukDKVHnac4&t=3s Transistor working principle Transistor working principle: A transistor is one kind of semiconductor device that is used to amplify or switch electronic signals and electrical power.  A transistor is very simple and also complex. The transistor can work either the amplifier or switch. At the time of amplifier, it...

DC motor how it works video https://www.youtube.com/watch?v=LAtPHANEfQo DC motor how it works We know that a motor is a device which transforms electrical energy into mechanical energy. In the case of DC motor, it's one type of motor that uses the DC current to convert electrical energy to mechanical energy. Actually, the motor...

Video: Electrical transformer working principle https://www.youtube.com/watch?v=vh_aCAHThTQ Electrical transformer working principle: We know that a Electrical transformer is a static device that transfer electrical energy between two or more circuit through electromagnetic induction. So we can say that The transformer is an electrical device that consisting of two or more coils of wire...