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Questions and Answers
What are the conducting properties of a semiconductor based on?
What are the conducting properties of a semiconductor based on?
- The introduction of impurities into the crystal structure
- The resistivity falling as temperature rises
- The behavior of charge carriers at semiconductor junctions (correct)
- The proximity to the 'metalloid staircase' on the periodic table
How can the electrical properties of a semiconductor material be modified?
How can the electrical properties of a semiconductor material be modified?
- By reducing its sensitivity to light or heat
- By increasing its resistivity with temperature
- By doping and by the application of electrical fields or light (correct)
- By eliminating impurities from the crystal structure
Which material is the second-most common semiconductor after silicon?
Which material is the second-most common semiconductor after silicon?
- Silicon carbide
- Gallium arsenide (correct)
- Germanium
- Gallium nitride
What is the basis of diodes, transistors, and most modern electronics?
What is the basis of diodes, transistors, and most modern electronics?
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Which element is critical for fabricating most electronic circuits?
Which element is critical for fabricating most electronic circuits?
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