निम्न में से कौन सी धातु अर� – McqOptions

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1.	निम्न में से कौन सी धातु अर्द्धचालक के रुप में ट्रांजिस्टर के रुप में प्रयोग होती है।
A.	ताँबा
B.	जर्मेनियम
C.	ग्रेफाइट
D.	चाँदी
Answer» C. ग्रेफाइट

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