Electric Circuit When wires connected together end to end, it forms a closed loop. Through this closed loop electrons flow in a continuous way as illustrated in Fig. Electric Circuit. Electrons flow is nothing but an electric current. Hence, for an electric current to flow there must be a closed path or loop. If there
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Conductor, Insulators and Semiconductors Conductors Some materials have free electrons at room temperature. These free electrons constitute to electric current. Such materials having free electrons are termed as conductors. Conductors are used to conduct electric current from one place to other. Copper is a good conductor of electricity, hence wires are made of copper material.
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Electric current What is Electric current? There are randomly moving free electrons in a material. The number of free electrons in any material depends on whether it is conductor, insulator or semiconductor. More number of free electrons is available in a conductor while few in insulators. At normal room temperature, free electrons move randomly in
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Why Electronics? Electronics has become an inseparable part of our life. We cannot imagine a single moment without it when we are not using any electronic device. We are woken up by set alarm clock, then the tea/coffee maker, remote control to turn on the TV, water heater, oven, move out of house use lift
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