WHAT IS A TRANSFORMER A transformer is a static electrical device that transfers electrical energy between two or more circuits. A varying current in one coil of the transformer produces a varying magnetic flux, which, in turn, induces a varying electromotive force across a second coil wound around the same core. Electrical energy can be transferred between the two coils, without a metallic connection between the two circuits. Faraday's law of induction discovered in 1831 described the induced voltage effect in any coil due to changing magnetic flux encircled by the coil. Transformers are used for increasing or decreasing the alternating voltages in electric power applications, and for coupling the stages of signal processing circuits. Since the invention of the first constant-potential transformer in 1885, transformers have become essential for the transmission, distribution, and utilization of alternating current electric power. A wide range of transformer designs is e...
WHAT IS A TUBE LIGHT Tube shaped fluorescent lamp is termed as tube light. Tube light is a lamp that works on low pressure mercury vapor discharge phenomenon and converts ultra violate ray into visible ray with the help of phosphor coated inside glass tube. THE MATERIALS USED TO BUILD A TUBE LIGHT ARE GIVEN BELOW 1. Filament coils as electrodes 2. Phosphor coated glass bulb 3. Mercury drop 4. Inert gases (argon) 5. Electrode shield 6. End cap 7. Glass stem HOW TO REPLACE A TUBELIGHT Turn off your light. Use your ladder or Chair to examine a flickering or dead tube light. Remove any diffuser or thin plastic cover used to...