Home › CBSE Class 12 (Science) › Physics › Semiconductor Electronics: Materials, Devices and Simple Circuits › Donor impurities make a semiconductor n-type by …
Donor impurities make a semiconductor n-type by adding what?
AFree photons
BFree holes
CFree protons
DFree electrons
Answer & Solution
Correct answer: D. Free electrons
A donor atom gives up an extra valence electron, which raises the electron concentration.
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?