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Which one of the following statement is FALSE?

1. Pure Si doped with trivalent impurities gives a p-type semiconductor
2. Majority carriers in a n-type semiconductor are holes
3. Minority carriers in a p-type semiconductor are electrons
4. The resistance of intrinsic semiconductor decreases with increase of temperature

Correct answer: Majority carriers in a n-type semiconductor are holes

Solution

In an n-type semiconductor, the majority carriers are electrons, not holes. Holes are the minority carriers in n-type semiconductors.

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