Which of the following statements best describe the temperature dependence of resistances of Cu and Si in the temperature range 27° to 127°C.
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → Linear increase for Cu and exponential decrease for Si
For conductors (like: Cu, Sn and etc), the resistance increases linearly and for semiconductor (like: Si and etc) it decreases exponentially.