The types of carriers in a semiconductor are ?->(Show Answer!)

1. The types of carriers in a semiconductor are

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MCQ->Assertion (A): At room temperature the fermi level in p type semiconductor lies nearer to the valence band and in n type semiconductor it lies nearer to the conduction band. Reason (R): At room temperature, the p type semiconductor is rich in holes and n type semiconductor is rich in electrons.

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MCQ-> Thought the Cold War has ended selective tactics are still continuing for ensuring the military and economic dominance of developed countries Various types of technology denial regimes are still being enforced which are now being mainly targeted against developing countries like India Today we in India encounter twin problems On one side there is a large scale strengthening of our neighbours through supply of arms and clandestine support to their nuclear and missile programmes and on the other side all efforts are being made to weaken our indigenous technology growth through control regimes and dumping of low-tech system accompanied with high commercial pitch in critical areas Growth of indigenous technology and self-reliance are the only answer to the problem Thus in the environment around India the number of missiles and nuclear powers are continuously increasing and destructive weapons continue to pile up around us in spite of arms reduction treaties To understand the implications of various types of warfare that may affect us we need to take a quick look at the evolution of war weaponry and the types of warfare I am highlighting this point for the reason that in less than a century we could see change in the nature of warfare and its effects of society In early years of human history it was mostly direct human warfare During the twentieth century up to about 1990 the warfare was weapon driven The weapons used were guns tanks aircraft ships submarines and the nuclear weapons deployed on land/sea/air and also reconnaissance spacecraft. Proliferation of conventional nuclear and biological weapons was at a peak owing to the competition between the superpowers The next phase in a new form has just started from 1990 onwards The world has graduated into economic warfare.The means used is control of market forces through high technology.The participating nations apart from the USA, are Japan the UK France Germany certain South East Asian countries and a few others The driving force is the generation of wealth with certain types of economic doctrine The urgent issue we need to address collectively as a nation is how do we handle the tactics of economic and military dominance in this new form coming from the backdoor ? Today technology is the main driver of economic development at the national level Therefore we have to develop indigenous technologies to enhance our competitive edge and to generate national wealth in all segments of economy Therefore the need of the hour is arm India with technology.Why do certain countries use selective tactics against developing countries ?
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MCQ->The types of carriers in a semiconductor are....