When a pure semiconductor is heated, its resistance_________


When a pure semiconductor is heated, its resistance decreases.

When the temperature is raised, some covalent bonds in the semiconductor break due to the thermal energy supplied. The breaking of the bond set those electrons free which are engaged in the formation of these bonds. These free electrons can constitute a tiny electric current if the potential difference is applied across the semiconductor. Hence, the resistance decreases with the rise in temperature.

Was this answer helpful?


4.5 (4)


Choose An Option That Best Describes Your Problem

Thank you. Your Feedback will Help us Serve you better.

Leave a Comment

Your Mobile number and Email id will not be published. Required fields are marked *




App Now