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Silicon can be made to conduct or to insulate depending on temperature, purity, and applied force, which is why it is central to computer chips. What is this intermediate class of material called?
AAn insulator
BA semiconductor
CA superconductor
DA dielectric
Answer & Solution
Correct answer: B. A semiconductor
1. A material with conductivity between that of a conductor and an insulator is called a semiconductor.
2. Silicon is named as the most common semiconductor and is used in computer chips.
3. A superconductor, a dielectric, and a plain insulator are all different named materials, not the intermediate class described here.
_Source: OpenStax Physics (CC BY 4.0), Ch 18 "Static Electricity", section Conductors and Insulators_
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