Electricity is the greatest gift of science to mankind. We have reached a point of our civilization when electricity is used for all purposes. Without it, our existence will be impossible. Electricity is a source of energy. It is produced by a battery or a coil of wires or by dynamo machine. It is produced in thermal station and also in hydro-project. There are various wonders of electricity. The most important of all is electric fan and electric light. These two things have improved our living standard and also efficiency of work. Our houses, roads, offices and shops are lighted. It is difficult and sometimes impossible to work in an office where there is no light and fan.Students read comfortably in a room which is properly furnished with electric light and fan. Fan is not a luxurious thing. It is necessary to fight heat during summer. Electricity is essential to operate fan in summer and electric heater in winter. In cold winter, electric heaters warm our rooms. Electricity is a means of communication. Telegraph and telegram device is based on electricity. It is easy send messages to distant places. Telephone also functions due to electricity. Due to this facility, the world has become a familiar place for all. Fax-machine is the latest development. Thus, communication is possible due to electricity. Elect has enabled us to conquer time and space. After the invention of electricity there has been improvement in railways. Previously, the railway trains i steam engines. At present, electric trains are used in all countries. Electricity is of vital use in industries and factories, electricity no factory can run. Now-a-days, everything is done by electricity. We use grinder-mixture, refrigerators, washing machine and other home appliances at our home. But without electricity these things can not function. Radio and television are gifts of electricity. Cinema is impossible without it. The most important wonder of electricity is felt in the field of medical science. X-Ray, Scanning, Ultra Sonographer Test, E.C.G., Endoscopy, etc. are the developed devices in the field of medicine and surgery. This is possible due to electricity only. Lunacy and mental disorder can be cured through electric shocks to the patients. Computer functions only when it is supplied with electricity.
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