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Deliberate addition of an impurity to a semiconductor is called:
AFusing
BBiasing
CEtching
DDoping
Answer & Solution
Correct answer: D. Doping
1. Pure silicon conducts only feebly.
2. Adding chosen foreign atoms raises the carrier count.
3. That deliberate addition is called doping.
4. So the answer is doping.
_Source: NCERT Class 12 Physics, Ch 14 'Semiconductor Electronics'_
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