A copper wire and a silicon wire are heated from room temperature to 60°C . Then

Question

A copper wire and a silicon wire are heated from room temperature to 60°C . Then (A) resistance of both the wires decreases (B) resistance of both the wires increases (C) resistance of copper wire decreases and that of silicon wire increases (D) resistance of copper wire increases and that of silicon wire decreases

Tardigrade Admin · Accepted Answer

Copper is a metal whereas silicon is a semiconductor. The temperature coefficient of resistance is positive for metals and negative for semiconductor. Therefore, the resistance of copper wire increases and that of silicon wire decreases as the wires are heated.

Q. A copper wire and a silicon wire are heated from room temperature to 60∘C . Then

resistance of both the wires decreases

resistance of both the wires increases

resistance of copper wire decreases and that of silicon wire increases

resistance of copper wire increases and that of silicon wire decreases

Copper is a metal whereas silicon is a semiconductor. The temperature coefficient of resistance is positive for metals and negative for semiconductor. Therefore, the resistance of copper wire increases and that of silicon wire decreases as the wires are heated.

Q. A copper wire and a silicon wire are heated from room temperature to $6 0^{\circ} C$ . Then