Topic: Heat Transfer
Arrange the metals Aluminium, Copper, Iron & Silver in increasing order of thermal conductivity
- A. Iron, Aluminium, Copper, Silver
- B. Aluminium, Iron, Copper, Silver
- C. Copper, Iron, Silver, Aluminium
- D. Iron, Copper, Aluminium, Silver
Answer: A. Iron, Aluminium, Copper, Silver
Explanation: The approximate thermal conductivities are: Iron (55-35), Aluminium (210), Copper (385), Silver (410). The correct increasing order is Iron < Aluminium < Copper < Silver.