alleryA thick copper wire compared with an identical thin one has what resistance?
AHigher
BInfinite
CLower
DThe same
Answer & Solution
Correct answer: C. Lower
1. Resistance is inversely proportional to cross-sectional area.
2. So a thick copper wire has lower resistance than an otherwise identical thin wire.
3. Higher, infinite or the same do not fit.
_Source: Wikipedia, Electrical conductor, Resistance and conductance_
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