MHT CET Physics question

Not in JEE Advanced syllabus

Intrinsic semiconductor is electrically neutral. Extrinsic semiconductor having large number of current carriers would be

(A)positively charged
(B)negatively charged
(C)positively charged or negatively charged depending upon the type of impurity that has been added
(D)electrically neutralCorrect

Answer: (D)

Solution

Doping adds neutral atoms; the extra carriers are balanced by fixed ions of opposite charge, so an extrinsic semiconductor

Create a free account to read the complete working, and practise questions like this in a timed test.

Question ID VK-075027