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Electronics and Communication Engineering - Exam Questions Papers - Discussion

Discussion Forum : Exam Questions Papers - Exam Paper 17 (Q.No. 21)
Exam Questions Papers
21.
Consider the following statements:
  1. Acceptor level is formed very close to the conduction band.
  2. The effective mass of the free electron is same as that of a hole.
  3. The magnitude of the charge of a free electron is same as that of a hole.
  4. Addition of donor impurities adds holes to the semiconductor.
Which of the above statements are correct?
1 and 3
2 and 3
2 and 4
3 and 4
Answer: Option
Explanation:
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