all the end of the earth

To avoid the risk of electric shocks, the metal of an electrical appliance is 'earthed'. Earthed means to connect the metal case of the appliance to the earth (at zero potential) by means of a metal wire (copper) called the earth wire. One end of t..

The creation of a life form, by a similar life is called reproduction. Reproduction is the extension of life of a species at a given time. It is a means of perpetuation of the species and also multiplies their number. By this process, the individuals transmit life to the next generation and t..

Introduction - The creation of a life form, by a similar life is called reproduction. Reproduction is the extension of life of a species at a given time. It is a means of perpetuation of the species and also multiplies their number. By this process, the individuals transmit life to the next generat..

Introduction - The creation of a life form, by a similar life is called reproduction. Reproduction is the extension of life of a species at a given time. It is a means of perpetuation of the species and also multiplies their number. By this process, the individuals transmit life to the next generat..

> at the bottom of the mantle. Here, the mantle ends and a sudden increase in density occurs. It is here that the core of the earth begin..

During thunderstorms, large amount of electrical charge separation takes place in the clouds. As a result, some regions of the cloud have overall positive charge, while others have overall negative charge. When this separation becomes sufficient, the air ionizes and becomes conducting. This results..

An Alternative method of charging body by induction is the earthing process. A positively charged acetate strip is brought near a neutral, insulated conductor. The negative charge is attracted to the positively charged body at the end 'A' and the positive charge is repelled and ..

The gold leaf electroscope is a more sensitive instrument. It consists of a draught proof metal case with glass sides housing the gold leaves. The gold leaves 'L' and 'M' are attached at one end of a vertical metal stem S. At the top the stem has a metal place 'C'. The stem is carefully ..

Introduction - Very often, energy is generated at one place but consumed elsewhere. The transportation of energy from its source to the receiving end can be done in two ways: By actually moving the matter carrying kinetic energy and delivering it to the other end. By the vibration of..

Charging by Induction - In the previous section we saw how a body is charged by friction . Let us now see how we can charge a metallic sphere by induction. Fig (a) shows an uncharged metallic sphere supported on an insulating rod. A charged plastic rod is brought close to the sphere. Free electrons..