In this question, statement of Assertion is followed by a statement of Reason.
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.
Text Solution
Verified by ExpertsCHECK THE SOLUTION.
A 
− − type semiconductor is formed by doping pure germanium or silicon crystal with suitable impurity atoms of valency five. As the impurity atoms take the position of 
atom in germanium crystal, its four electrons form covalent bonds by sharing electrons with the neighbouring four atoms of germanium whereas the fifth electron is left free. Since the atom on the whole is electrically neutral, the 
− − type semiconductor is also neutral.
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems