A potential barrier of 0.7V that exists across p-n junction is made from:
Correct answer: A. Silicon
- A. Silicon
- B. Germinium
- C. Indium
- D. Gallium
Explanation
At room temperature, Silicon crystal has fewer free electrons than Germanium , Indium and gallium crystal. This implies that silicon will have much smaller Collector cut off current than that if the others. The variation of Collector cut off current with temperature is less in Silicon compared to Germanium, valium and Indium.
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About Electronics
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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