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JEE PHYSICS MCQ: SEMI CONDUCTOR DEVICES
1
Medium
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Understanding
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Assertion: An N-type semiconductor has a large number of electrons but still it is electrically neutral.
Reason: An N-type semiconductor is obtained by doping an intrinsic semiconductor with a pentavalent impurity.
Reason: An N-type semiconductor is obtained by doping an intrinsic semiconductor with a pentavalent impurity.
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Correct option: B
If both Assertion and Reason are true, but Reason is not the correct explanation of Assertion
Option B (If both Assertion and Reason are true, but Reason is not the correct explanation of Assertion) is correct because while both statements are true, the reason doesn't explain why an N-type semiconductor is electrically neutral.
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