The forbidden gap in an insulator is________________?
Correct answer: A. large
- A. large
- B. small
- C. nil
- D. any of the above
Explanation
Insulators have a large forbidden energy gap, so electrons need substantial energy to move from the valence band to the conduction band. Conductors have little or no gap, while semiconductors have a relatively small gap.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
Practise Electronics and Devices
758 free Electronics and Devices MCQs from Electrical Engineering, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Electrical Engineering questions like this
Electrical Engineering is on 2 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Electronics and Devices questions
Which of the following factors affect resistivity of metals ?
Superconducting metal in super conducting state has relative permeability of________________?
For a hole which of the following statements is incorrect ?
Selenium is __________ semiconductor?
The photo-electric effect occurs only when the incident light has more than a certain critical____________?
Which of the following is a semiconductor material ?