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Resistance: Resistance is the property of a substance which oppose the flow of e…
Introduction : Electric energy is essential ingredient for the industrial and all roun…
metallurgy Metallurgy is the science and technology of metals and 1) extracting meta…
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Advantages of SI units: 1 the base and supplementary units covers all branches of sci…
Rules of writing SI units: 1 the name of unit may be written in full or it's app…