When the temperature of semiconductor suddenly drops to zero kelvin, thena semiconductor acts as:
Correct answer: D. Insulator
- A. Conductor
- B. Semi-conductor
- C. Super conductor
- D. Insulator
Explanation
When the temperature of a semiconductor drops to absolute zero, the semiconductor behaves as an insulator. At absolute zero, the valence electrons in a semiconductor come to rest, and the energy band gap between the valence band and the conduction band becomes very large. This large energy gap prevents the movement of electrons, resulting in a lack of conductivity. Therefore, at zero Kelvin, a semiconductor acts as an insulator rather than a conductor, semiconductor or superconductor.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Electronics
A p-n junction forms when p-type and n-type semiconductor regions meet, creating a depletion layer, barrier potential and rectifying action. The work covers forward and reverse bias, junction current, diode characteristics, and how a diode converts alternating current into pulsating direct current through half-wave and full-wave rectification.
Practise Electronics
660 free Electronics MCQs from Physics, 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 Physics questions like this
Physics is on 16 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 questions
The potential difference applied across a diode to reduce depletion layer is:
The process of converting AC into DC is called:
A circuit that converts pulsating voltage of the rectifier to smooth voltage is known as:
Output current of half wave rectifier is:
The resistance of full wave rectifier is:
When AC is converted to DC, the process is called: