An atom contains electron and protons and as a result, there is an electric charge on it due to the balance or unbalance of these particles. Electron contains negative charges and protons contain a positive charge. Like charges repel each other and unlike charges attract each other. These particles create an electric field around then …
If you ever wonder how electricity works, then you are not alone in this. The relation between electricity and the computer is since its invention, and many have a mystical confusion in mind about it. In order to keep your computer system works, you must grasp the basic idea of how a computer works and …
Introduction to Electrical Engineering Electrical engineering is one of the many disciplines within the engineering world. The engineer is to come up with a system that offers a solution to world problems. To achieve this engineering integrates scientific principles with mathematics to design and implement world solutions. Just like other disciplines, these solutions have been …
Introduction You have heard of an oscillator, what you can say it is. One professor said that unless you are able to explain something to a layman to a level of understanding then you don’t know it. He believed that nothing known to man can be explained to the level of a child’s understanding. In …
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Fire Extinguisher Ball is the most developed item in the fire business to lessen the catastrophe and any unsalvageable misfortune brought about by fire. Fire Extinguisher Ball is light and versatile which could quench the underlying fire. It is made of the water-confirmation plastic shell and topped off with innocuous natural powder. It is a …
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Step-up transformer is an electric device that raises the voltage of the secondary side (winding) to the primary side (winding). A transformer is a static device that is used to step up voltage and step down the voltage. Power remains the same on the primary side and the secondary side of the transformer. As we …
Q # 01. Which one is the cheapest electrical power generation Source A. Hydro Power Plant C. Diesel Power Plant B. Nuclear Power Plant D. Thermal Power Plant Correct Answer: Hydro Power Plant Q # 02. Coal Power plant also known as A. Charcoal Power Plant B. Steam Power Plant C. Thermal Power Plant D. …
Synchronous motor construction is very similar to synchronous generator construction except that most motors are salient-pole machines. Principle and Operation of Synchronous Motor When an induction motor is connected to a three-phase supply, a rotating magnetic field is established; this induces currents in the rotor windings, thereby producing a torque. The rotor can never turn at …
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History and Discovery of Electricity Electricity is one of our most useful sources of energy today. It is hard to imagine how a modem industrial society could exist without electricity. But until the mid-1800s, no one knew much about electricity or how to use it. Until then, electricity was nothing more than a scientific curiosity. …
Operating a DC Shunt Motor on AC Power What will happen if you connect a dc motor to an ac source? When the ac source changes polarity, the current in the motor will reverse. But the reversal will occur in both the armature winding and the field winding. Therefore, the torque on the armature will …