Physics · Semiconductors
Which of the following statements about extrinsic semiconductors is correct regarding the effect of temperature on their conductivity?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1In p-type semiconductors, increasing the temperature in the intrinsic range leads to an increase in the number of holes and electrons as more covalent bonds break.✓
- 2The conductivity of n-type semiconductors increases with a decrease in temperature due to fewer free electrons.
- 3Temperature has no significant effect on the conductivity of extrinsic semiconductors once they are doped.
- 4In both n-type and p-type semiconductors, conductivity decreases sharply with an increasing temperature across all ranges.
Correct answer
In p-type semiconductors, increasing the temperature in the intrinsic range leads to an increase in the number of holes and electrons as more covalent bonds break.
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