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What is the resistance of a wire of length 2 m and cross-sectional area 1 mm² if the resistivity of the material is 1.7 x 10^-8 Ωm?

Practice Questions

1 question
Q1
What is the resistance of a wire of length 2 m and cross-sectional area 1 mm² if the resistivity of the material is 1.7 x 10^-8 Ωm?
  1. 0.034 Ω
  2. 0.017 Ω
  3. 0.068 Ω
  4. 0.085 Ω

Questions & Step-by-step Solutions

1 item
Q
Q: What is the resistance of a wire of length 2 m and cross-sectional area 1 mm² if the resistivity of the material is 1.7 x 10^-8 Ωm?
Solution: Resistance R = ρ * (L/A). Here, R = (1.7 x 10^-8 Ωm) * (2 m / (1 x 10^-6 m²)) = 0.034 Ω.
Steps: 0

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