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डोपिंग क्या है?

1).डोपिंग क्या है?
जब शुद्ध अर्धचालक में कोई उपयुक्त अशुद्धि अत्यल्प मात्रा में जैसे कुछ भाग प्रति मिलियन में मिलाई जाती है तो उसकी चलकता में कई गुना वृद्धि हो जाती है वंछित अशुद्धि को सावधानीपूर्वक मिश्रित करना डोपिंग कहलाता है।

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