Resistance and circuit components

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Question 14
Medium

A uniform wire has resistance RRR, length LLL, resistivity ρ\rhoρ, mass mmm, and density ddd. Which of the following equations correctly expresses the resistance of the wire?

R=ρmL2d R = \frac{\rho m}{L^2 d} R=L2dρm​
R=ρL2dm R = \frac{\rho L^2 d}{m} R=mρL2d​
R=ρL2md R = \frac{\rho L^2 m}{d} R=dρL2m​
R=ρdmL2 R = \frac{\rho d}{m L^2} R=mL2ρd​

Resistance and circuit components Questions

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