The impurity in the germinium is usually in the ratio of:
Correct answer: C. 1:108
- A. 1:106
- B. 1:104
- C. 1:108
- D. 1:1010
Explanation
Germanium is a semiconductor having an indirect bandgap, as is crystalline silicon. Zone refining techniques have led to the production of crystalline germanium for semiconductors that has an impurity of only one part in 10^8 making it one of the purest materials ever obtained.
Last updated
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.
Exams that ask Physics questions like this
Physics is on 13 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
Related questions
(7) In n-p-n transistor, p works as: (Tag: Electronics sub-tag: Transistors )
A capacitor and an inductor are connected to the A.C. supply. If we double the frequency of the A.C. supply then the effect on the reactance of capacitor XC and reactance of inductor XL will be:
A capacitor is to be used to provide smoothing for a half wave rectifier. In which of the following diagrams is capacitor correctly connected?
A changing electric flux develops in the region:
A circuit that adds positive or negative voltage to an input sine wave is called _.