10 Questions
Which type of material is a semiconductor that has added trivalent impurities?
P-type material
What is the characteristic of a trivalent element?
It has three valence electrons
Which element is mentioned as a pentavalent atom in the text?
Antimony (Sb)
What does the process of doping involve in semiconductors?
Adding impurity elements
In which type of material do the conduction-band electrons outnumber the valence band holes?
N-type material
What is the role of valence-band holes in the material described?
Majority carriers
What happens when an electron crosses the junction into the P-type material?
It gets trapped in a valence-band hole
What is the purpose of applying a potential to a P-N junction in reverse bias?
To increase resistance
In which bias condition does a P-N junction act as a one-way conductor?
Forward biased
What effect does forward bias have on the resistance of a P-N junction?
Decreases resistance
Test your knowledge on semiconductor doping process, trivalent and pentavalent elements, and the characteristics of P-type and N-type semiconductor materials.
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