alleryThe quantity denoted by sigma, the inverse of resistivity, is:
AConductivity
BCapacitance
CConductance
DCapacity of
Answer & Solution
Correct answer: A. Conductivity
1. Resistivity measures how strongly a material resists flow.
2. Its reciprocal measures how well it conducts.
3. That quantity is the conductivity.
4. So the answer is conductivity.
_Source: syllabus Physics, Ch 3 'Current Electricity'_
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