Home › UP Board Class 12 › Physics › Semiconductor Electronics › A pentavalent impurity is known as a:
A pentavalent impurity is known as a:
ADonor
BCarrier
CBarrier
DBlocker
Answer & Solution
Correct answer: A. Donor
1. It contributes one extra electron to the crystal.
2. That electron is available for conduction.
3. So the pentavalent impurity is a donor.
4. The answer is donor.
_Source: NCERT Class 12 Physics, Ch 14 'Semiconductor Electronics'_
Related questions
Holes exist as vacant levels created in the:A junction diode is described as a device with how many electrodes?In an n-type semiconductor, the minority carriers are:A material behaves as a metal when the two bands:A material with a band gap below three electron volts is a:A material with a band gap above three electron volts is an:Conductivity of an intrinsic semiconductor depends on its:One acceptor atom gives how many holes?