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A piece of copper and other of germanium are cooled from the room temperature to 80 K, then

a)

Resistance of each will increase

b)

Resistance of each will decrease

c)

The resistance of copper will increase, while that of germanium will decrease

d)

The resistance of copper will decrease, while that of germanium will increase


Question ID - 151921 | Toppr Answer

A piece of copper and other of germanium are cooled from the room temperature to 80 K, then

a)

Resistance of each will increase

b)

Resistance of each will decrease

c)

The resistance of copper will increase, while that of germanium will decrease

d)

The resistance of copper will decrease, while that of germanium will increase

1 Answer - 5876 Votes

3537

Answer Key : (d) -

(d)

The temperature coefficient of resistance of copper is positive and germanium is negative.



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