A) mobility of atoms in the metal
B) resistance of the metal
C) minor purturbation in the energy of the metal
D) energised electrons moving to the other end
Correct Answer: D
Solution :
On heating one end of the metal piece the other end becomes hot, this is due to the movement of energised electrons from one end to another. This can also be explained on the basis of increased vibrational energy of molecule that transfers the energy from the subsequent molecules hence the temperature rise due to increased collisions.
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