A piece of copper and another of Germanium ar | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) The resistance of a conductor (like copper) is directly proportional to its temperature. As the temperature decreases,the resistance of copper dec

Vedclass · Accepted Answer

copper decreases and germanium increases.

Vedclass · Answer

(A) The resistance of a conductor (like copper) is directly proportional to its temperature. As the temperature decreases,the resistance of copper decreases.The resistance of a semiconductor (like germanium) is inversely proportional to its temperature because the number of charge carriers decreases significantly as the temperature drops. As the temperature decreases,the resistance of germanium increases.Therefore,when both are cooled from room temperature to $40 \ K$,the resistance of copper decreases and the resistance of germanium increases.

$A$ piece of copper and another of Germanium are cooled from room temperature to $40 \ K$. The resistance of . . . . . . .

Similar Questions

When the temperature of a semiconductor is increased,its resistance and electric conductivity respectively.

Give a brief explanation of solid state semiconductor electronics.

The conductivity of a semiconductor increases with an increase in temperature because

Why does the resistivity of a semiconductor decrease with an increase in temperature?

Carbon, silicon, and germanium have four valence electrons each. At room temperature, which one of the following statements is most appropriate?

Vedclass Test Series

Exam Paper Generator

Online Exam Module