Difference between Semiconductors and Conductors
| | Semiconductors | Conductors |
1. | Equally resistivity and contract effects are extremely sensitive to tiny change in physical conditions. | Both resistivity and contact effects are extremely sensitive to tiny changes in physical conditions. |
2. | Moving carrier of electric current are originated due to inclusion of thermal radiant or electric energy as of an external source. | Current carriers here are free electrons which exist whether outside energy is functional on not. |
3. | Their resistivity is frequently high and temperature coefficient of resistance is constantly negative. | The resistivity is extremely low and the temperature coefficient of resistant is not stable. |
4. | Semiconductor has negative temperature coefficient of resistance. | Conductor has positive temperature coefficient of resistance. |
5. | There is moderate number of electrons accessible for conduction. | There is large number of electrons accessible for conduction. |
6. | These are materials have filled energy bands with small forbidden zones. | These are materials by unfilled or overlap energy bands. |
7. | At low temperature, they become dielectric. | At extremely low temperatures i.e. absolute zero temperature they become superconductors. |
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