When free electrons move from the n-region to the p-region, a potential difference appears across this region called
Correct answer: C. interaction region.
- A. potential barrier.
- B. depletion region.
- C. interaction region.
- D. absolute potential.
Explanation
When free electrons move from the n-region to the p-region in a semiconductor device, the potential difference that appears across this region is referred to as the interaction region. This term specifically describes the phenomenon of electron movement between these regions. The other options, potential barrier, depletion region, and absolute potential, do not accurately capture this concept and are therefore incorrect.
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About PN Junction
A PN junction forms when p type and n type semiconductor regions meet, creating a depletion layer and a potential barrier. The topic covers forward and reverse bias, diode current voltage characteristics, breakdown and rectification, while distinguishing an ordinary junction diode from a transistor formed from multiple junctions.
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