Question 198: Semiconductors and Logic Gates

Question

A strip of copper and another of germanium are cooled from room temperature to $$80K.$$ The resistance of

Accepted Answer

The resistance of metal (like $$Cu$$) decreases with decrease in temperature whereas the resistance of a semi-conductor (like $$Ge$$) increases with decrease in temperature.

Answer

each of these decreases

Answer

copper strip increases and that of germanium decreases

Answer

copper strip decreases and that of germanium increases

Answer

each of these increases

Semiconductors and Logic Gates

A strip of copper and another of germanium are cooled from room temperature to $80K.$ The resistance of

Choose the correct answer: