When the temperature of a semiconductor is increased its electrical conductivity.
Correct answer: A. increases
- A. increases
- B. decreases
- C. remains the same
- D. first increases and then decreases
Explanation
When the temperature of a semiconductor is increased, its electrical conductivity increases. This is because at higher temperatures, more charge carriers (electrons and holes) are generated due to thermal excitation, leading to increased conductivity.
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A p-n junction forms when p-type and n-type semiconductor regions meet, creating a depletion layer, barrier potential and rectifying action. The work covers forward and reverse bias, junction current, diode characteristics, and how a diode converts alternating current into pulsating direct current through half-wave and full-wave rectification.
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