NEET Physics (general) MCQ Question
Which of the following combinations about the behavior of charge carriers in semiconductors is correct?
n-type semiconductors have electrons as majority carriers, while p-type semiconductors have holes as majority carriers.
Both n-type and p-type semiconductors have the same type of majority carriers.
Doping Si or Ge with trivalent elements increases the number of free electrons in the semiconductor.
Electrons move independently in n-type semiconductors but require holes to move in p-type semiconductors.
Correct Answer
Detailed Explanation
In n-type semiconductors, doping introduces extra electrons, making them the majority carriers, while in p-type semiconductors, holes created by trivalent doping are the majority carriers, as per the provided context.
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