A Potential difference is developed across the depletion region of p-n junction due to:
Correct answer: C. Both positive and negative ions
- A. Negative ions
- B. Positive ions
- C. Both positive and negative ions
- D. None of these
Explanation
In a p-n junction, when a depletion region is formed due to the diffusion of majority carriers (holes in the p-region and electrons in the n-region), positive and negative ions are created. These ions result from the immobile dopant atoms left behind as the majority of carriers diffuse across the junction. The positive ions are left in the n-region, and the negative ions are left in the p-region.
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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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