thermal conductivity of bad conductor by lee's disc method
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Conductors conduct electrical current very easily because of their free electrons. Insulators oppose electricalcurrent and make poor conductors. Some common conductors are copper, aluminum, gold, and silver. Some common insulators are glass, air, plastic, rubber, and wood.
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To determine thermal conductivity of a bad conductor (glass) in form of a disc using Lee's method. where H is the steady state rate of heat transfer, k is the thermal conductivity of the sample, A is the cross sectional area and (T 2 – T1) is the temperature difference across the sample thickness 'x'
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