Electricity

Electricity is the common term encompassing several phenomena resulting from the presence and flow of the electric charge and these comprises many easily recognizable phenomena, like static electricity, the flow of the electrical current in the electrical wire and lightning. Besides, Electricity comprises less familiar concepts like the electromagnetic induction and electromagnetic field.

Electricity is the amazing energy that we use for countless different tasks. We use it to make electric lights shine and mircowave ovens cook meals. We use it to make music on a CD player or create a TV picture. We use it to power everything from the minute workings of a computer, to the mighty engines of a high-speed train. It can power anything from the thousands of tiny micro switches in a computer to the huge engines in a train. In fact Electricity is one of the basic forces that hold every single atom in the universe together. Today Electricity is almost used in all the places of the world. Without Electricity it is quite impossible to survive in this modern world.

Electricity has been around for a very, very long time. It was formed in the first split second of the universe, more than 12 billion years ago. Yet Electricity was barely noticed until little more than 200 years ago. The word "electricity" comes from the Ancient Greeks. In about 600 B.C., Greek philosopher Thales noticed that when he rubbed a kind of resin called amber with cloth, the amber attracted feathers, threads, and bits of fluff. The Greek word for amber was electron. The word "electricity" was coined by William Gilbert, Queen Elizabeth I physician (doctor). He was conducting some experiments, and he noticed that sulfur had the same power of attraction as amber when rubbed. He called this force of attraction electricity.

Questionnaire:

• What is Electricity? Explain.