Physics · Semiconductor Electronics
Given below are two statements, one labelled as Assertion (A) and the other labelled as Reason (R): Assertion (A): An n-type semiconductor crystal as a whole remains electrically neutral. Reason (R): When a neutral pentavalent impurity atom dopes an intrinsic semiconductor, it donates its fifth valence electron to the crystal conduction band but leaves behind a positive immobile ion core, preserving charge neutrality. Select the correct option:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Both (A) and (R) are false.
- 2(A) is true but (R) is false.
- 3Both (A) and (R) are true but (R) is not the correct explanation of (A).
- 4Both (A) and (R) are true and (R) is the correct explanation of (A).✓
Correct answer
Both (A) and (R) are true and (R) is the correct explanation of (A).
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