Physics · Current Electricity
Which of the following represents the correct mathematical relation between resistivity (ρ), resistance (R), length of the conductor (l), and cross-sectional area (A)?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1ρ = ρlA
- 2R = ρlA
- 3ρ = RAl✓
- 4R = ρAl
Correct answer
ρ = RAl
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