Electronics Engineering · Semiconductor Devices
Which of the following statements is INCORRECT when impurity atoms are added to a pure semiconductor?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1When a donor impurity is added to a semiconductor, the number of free electrons increases.
- 2At 0 K, some free electrons are present in the conduction band of an N-type semiconductor.✓
- 3The main effect of adding acceptor impurities to a semiconductor is the creation of holes.
- 4The donor energy level is a discrete level located just below the conduction band.
Correct answer
At 0 K, some free electrons are present in the conduction band of an N-type semiconductor.
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