Electrical power is produced at the power generating plants which are located far away from the load centers. Therefore, we need to transport the electrical power generated at the power generating plant to the points of utilization or load points. For this purpose, two major systems of conductors are developed ... Read More

Ordinary light and LASER light are both forms of electromagnetic waves, hence they can travel at the same speed, i.e., speed of light, in vacuum. However, there are several differences between an ordinary light and LASER light. One major difference is that the ordinary light has a mixture different wavelength ... Read More

Several types of devices are used to emit light. The two special devices that are used as the source of light in flashlights, traffic signals, medical instruments, etc. are LED and LASER. Both LED and LASER can emit electromagnetic radiation in the form of light. Although, these are different from ... Read More

In any electric circuit (AC or DC), the electric power is one of the major electrical quantity. The electrical power is broadly classified into three types namely active power, reactive power and apparent power. These three types of electric powers are measured in different units. Where, the active power is ... Read More

The terms diode and rectifier are extensively used in electronics engineering. Sometimes, both these terms seam similar because they perform similar functions. However, there are many differences between a diode and a rectifier. This article is meant for explaining the differences between diode and rectifier. But before discussing ... Read More

There are two most popular MOS (Metal Oxide Semiconductor) technologies namely CMOS and NMOS which are widely used in the field electronics and power electronics such as in ASICs, memories, processors, etc. Nowadays, the CMOS technology is one of the leading semiconductor technology. It is because the CMOS technology dissipates ... Read More

A power plant is an interconnected system of various electrical equipment that is used to generate electricity. The major components of a power plant include an alternator (or generator), a prime mover, control system, a generating transformer, etc. The prime mover is a mechanism that drives the alternator or generator ... Read More

In a semiconductor diode, the term breakdown implies the short circuit of the diode. As we know, the diode allows the flow of electric current in only one direction (forward direction) and blocks the flow of current in the reverse direction. But, when the applied voltage in the reverse direction ... Read More

A relay is nothing but an electrically operated switch. To switch power on and off, a relay requires a low power electrical signal. Therefore, a relay is an automatically operated switch that uses low power electrical signal to control a high power electrical signal.Electromechanical Relay (EMR)As the name implies, an ... Read More

Vacuum tube and Transistor are types electronic switching devices used a variety of electronic devices and circuits such as computers, communication systems, power supplies, TV, radios, amplifiers, etc. However, both are significantly different from each other based on their technology and operation. In this article, we will highlight all ... Read More