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A wire of length 100 cm has a resistance of 10\(\Omega\). If its cross-sectional area ...

A wire of length 100 cm has a resistance of 10\(\Omega\). If its cross-sectional area is 0.005cm2, determine its resistivity
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  • A 0.0005\(\Omega\)cm
  • B 0.0015\(\Omega\)cm
  • C 0.0016\(\Omega\)cm
  • D 0.0700\(\Omega\)cm
Correct Answer: Option A
Explanation:
e = \(\frac{RA}{L} = \frac{10 \times 0.005}{100} = 0.0005\)

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