Home › NEET UG › Physics › Semiconductor Electronics: Materials, Devices and Simple Circuits › Doping a pure semiconductor usually adds impurit…
Doping a pure semiconductor usually adds impurity at a level of a few:
APercent by weight
BMoles per litre
CParts per thousand
DParts per million
Answer & Solution
Correct answer: D. Parts per million
Only a few parts per million of a suitable impurity raises the conductivity manifold.
Related questions
Besides powering devices, rectifiers can detect what?What does the p in p-type stand for?Why is n-type material so called?Why are field-effect transistors called unipolar?In a Schottky junction, what replaces the n-type semiconductor?In a varactor diode, reverse bias varies which property?Solar cells and LEDs are essentially built from what?A semiconductor diode is made of which arrangement?