In semiconductors, electrical current can be carried by two types of charge carriers: negatively charged electrons moving in the conduction band, and positively charged "holes" (which represent the absence of an electron) moving in the valence band.
Electric conduction in a semiconductor takes place due to
Asked in UKPSC CS Prelims 2016 · Topic: Conductivity (Intrinsic and Extrinsic Semiconductors: Doping, carrier concentration, and Fermi level)
More Physics questions
- In N-type semiconductor, ultrapure Si is doped with
- An n-type semiconductor is
- When a small amount of a suitable impurity is added to the pure elemental semiconductor, the conductivity of the semiconductor is increased manifold. Such materials are known as - - (5) Question not attempted
- Which of the following liquids is a bad conductor of electricity?
- are materials whose resistivities become zero below a critical temperature.
- Superconductors are substances which
- Which of the following super conducting material has the highest critical temperature and highest critical magnetic flux density?
- On heating, the resistance of a semiconductor