All About Electrical & Electronics
Effective, Virtual, or R.M.S. Value of an Alternating Quantity:_ The question soon arises as to what is to be taken as the effective value of an alternating current relative to a direct current; and since the whole object of producing a current, either direct or alternating, is to transfer energy from one part of the … Read more
The conception of electrical power plays an important role in Electrical Engineering. Almost all electrical appliances are rated for the voltage of the source on which it can work and also the amount of power required for its operation. For example, an electric lamp is rated as 250 V, 60 W etc. As has been … Read more
Atom is the smallest particle of matter and it it consist of three main part. Protons, neutrons and electrons. The protons and neutrons are normally intimate with each other and form the nucleus of the atom. The electrons are particles rotating in the orbit around the nucleus like planets around the sun. The number of … Read more
The M.K.S. System of Units An absolute system of units is one in which the units of a few fundamental quantities are selected, and those of all other quantities derived units are expressed in terms of the fundamental units in accordance with the equations expressing the physical relation existing between them. All quantities used in … Read more