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Thermal conductivity of a material may be defined as the. | |
A. | quantity of heat flowing in one second through a slab of the material of area 1 cm2 and thickness 1 cm when its faces differ in temperature by 1° C [Wrong Answer] |
B. | quantity of heat flowing in one second through one cm of material when opposite faces are maintained at a temperature difference of 1° C [Wrong Answer] |
C. | heat conducted in unit time across unit area through unit thickness when a temperature difference of unity is maintained between opposite faces [Wrong Answer] |
D. | all of the above [Correct Answer] |