Physicshard · Past Paper
The resistivity of a certain material is 0.1 Ohm-meter. What is its conductivity?
A0.1 S/m
B1 S/m
C10 S/m
D100 S/m
✓ Correct Answer: C — 10 S/m
Conductivity is the reciprocal of resistivity: σ = 1/ρ = 1/0.1 = 10 Siemens per meter.
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