Platinum and silicon are heated upto 250

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Target Exam

CUET

Subject

Physics

Chapter

Semiconductors and Electronic Devices

Question:

Platinum and silicon are heated upto 250°C and after that cooled. In the process of cooling.

Options:

Resistance of platinum will increase and that of silicon will decrease

Resistance of silicon will increase and that of platinum will decrease

Resistance of both will decrease

Resistance of both will increase

Correct Answer:

Resistance of silicon will increase and that of platinum will decrease

Explanation:

The resistance of semicronductors increases with the decrease in temperature and that of conductors decreases.