The Variation of Thermal Conductivity of a Metal with Temperature

question 40

Multiple Choice

The variation of thermal conductivity of a metal with temperature is often correlated using an expression of the form K = K0 + at, where, K is the thermal conductivity and T is the temperature (in °K) . The units of 'a' in SI system will be

• A)W/m.k
• B)W/m
• C)W/m.K²
• D)None, 'a' is just a number

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