Why Temperature Coefficient Of Resistance Of A Semiconductor Is Negat

1.	Why Temperature Coefficient Of Resistance Of A Semiconductor Is Negative?
Answer» With the increase in temperature, the concentration of charge carriers (electrons and holes) increases. As more charge carriers are made AVAILABLE, the conductivity of a pure semiconductor increases i.e. resistivity of a pure semiconductor DECREASES with the RISE in temperature i.e. SEMICONDUCTORS have negative temperature coefficient of resistance. With the increase in temperature, the concentration of charge carriers (electrons and holes) increases. As more charge carriers are made available, the conductivity of a pure semiconductor increases i.e. resistivity of a pure semiconductor decreases with the rise in temperature i.e. semiconductors have negative temperature coefficient of resistance.

Why Temperature Coefficient Of Resistance Of A Semiconductor Is Negative?

Answer»

With the increase in temperature, the concentration of charge carriers (electrons and holes) increases. As more charge carriers are made AVAILABLE, the conductivity of a pure semiconductor increases i.e. resistivity of a pure semiconductor DECREASES with the RISE in temperature i.e. SEMICONDUCTORS have negative temperature coefficient of resistance.

With the increase in temperature, the concentration of charge carriers (electrons and holes) increases. As more charge carriers are made available, the conductivity of a pure semiconductor increases i.e. resistivity of a pure semiconductor decreases with the rise in temperature i.e. semiconductors have negative temperature coefficient of resistance.

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