ac power supply for m12

The electric power line enters our house through three wires. One is called the earth wire or ground wire. This carries no electricity. The earth wire is connected to a large metal plate buried deep in the ground. The remaining two wires carry electricity. One of these is maintained at ze..

The electric generator converts mechanical energy into electrical energy. The two types of generators are DC and AC generators: DC Generators - A cycle dynamo and a car dynamo are examples of DC generators. They produce DC AC Generators - AC Generators or alterna..

. Tidal mills were used for hundreds of years in some of the European countries. Schematic view of Turbines Fixed at the Bottom of a Reservoir The first small wave-energy device was built in Japan by Yoshio Masuda. Hundreds of navigation buoys use his system in the Sea of Japan. The Japanese are al..

In an electrical circuit, energy is supplied by the source of EMF, stored by the capacitive and inductive elements and dissipated in resistive elements. Conservation of energy requires that, at any particular time, the rate at which energy is supplied by the source of EMF must e..

Hydroelectric Power Plants - The electricity produced from flowing water is called Hydroelectric power. The world's first hydroelectric power plant was set up in 1882 in Wisconsin USA. It had a very small output, supplying power only for about 250 l..

In an electrical circuit, energy is supplied by the source of EMF, stored by the capacitive and inductive elements and dissipated in resistive element..

When a pure capacitance is contacted in AC circuit f = 90 o or r = 0. i.e., Average power supplied to an ideal capacitor by the source over a complete cycle of A.C. is also zero. ..

Do we use dry cells for operating electrical appliance? It is not impossible to tap continuous supply of energy from electrochemical cells. Electrical circuits in homes, factories and offices receive such energy form local power companies. In most countries the energy is su..

At most places, the household electric power is supplied at 220V, 50H. If such a source is directly connected to the tube, the tube will be damaged. To reduce the current, a choke coil is connected in series with the tube - representing the tube by a resistance and the chok..

Direct Current and Alternating Current - If the current flows always in the same direction, it is called 'direct current'. Direction current is represented as DC or dc. The current derived from a cell or a battery is direct current - since it is unidirectional. The positive and negative terminals a..