A perfect conductor has_____________?
Correct answer: C. infinite conductivity
- A. zero conductivity
- B. unity conductivity
- C. infinite conductivity
- D. none of the above
Explanation
A perfect conductor has zero resistance, and since conductivity is the reciprocal of resistivity, its conductivity is treated as infinite. Unity conductivity would describe a material with conductivity of only 1 siemens per metre, not a perfect conductor.
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