The process of doping causes the resistivity of semi conductor to:
Correct answer: A. Decrease
- A. Decrease
- B. Remains constant
- C. Increase
- D. None of these
Explanation
The purpose of doping is to increase the number of free electrons or holes in the semiconductor crystal. It increases the electrical conductivity of the semiconductor. In other words it decreases the resistance of the semiconductor Due to doping of pure semiconductor with trivalent or pentavalent atoms, number density of majority charge carriers increases which increases the conductivity of semiconductor and hence decreases its resistivity
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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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