1.5 - Extrinsic Semiconductors
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Practice Questions
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What is an extrinsic semiconductor?
💡 Hint: Think about how impurities affect conductivity.
Name a donor impurity used in n-type semiconductors.
💡 Hint: It has five valence electrons.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What type of semiconductor is created when phosphorus is added to silicon?
💡 Hint: Think about which charge carriers are dominant.
True or False: In a p-type semiconductor, electrons are the majority carriers.
💡 Hint: Consider what 'p-type' implies about charge carriers.
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Challenge Problems
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If you have a silicon crystal doped with both phosphorus and boron, how would you analyze its electrical characteristics? What challenges might arise?
💡 Hint: Consider the implications of mixed doping types.
Explain how temperature affects the conductivity of extrinsic semiconductors differently from intrinsic semiconductors.
💡 Hint: Think about how impurities influence thermal behavior.
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