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What Is the Resistance of a Cylindrical Metal Rod 1

Question 18

Multiple Choice

What is the resistance of a cylindrical metal rod 1.0 cm in diameter and 45 m long,if the resistivity of the metal is 1.4 × 10^-8 Ω ∙ m?

A) 0.0063 Ω
B) 0.0080 Ω
C) 0.80 Ω
D) 6.3 Ω

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