MHT CET Physics question

Not in JEE Advanced syllabus

Regarding p-type and n-type semiconductors, which of the following statements is true?

(A)n-type semiconductors have free electrons in majority.Correct
(B)n-type semiconductors have holes in majority.
(C)The concentration of electrons and holes are equal in both n-type and p-type semiconductors.
(D)n-type semiconductor is obtained by doping with trivalent impurity.

Answer: (A)

Solution

In n-type material electrons are in majority; (b) is false, (c) is false because the concentrations differ in

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Question ID VK-085139