The electrical resistivity of a thin copper wire and a thick copper rod are respectively ρ1m and ρ2m then _______
A. \(\rho_{1}>\rho_{2}\)
B. \(\rho_{2}^{>} \rho_{1}\)
C. \(\rho_{1}=\rho_{2}\)
D. \(\frac{\rho_{2}}{\rho_{1}}=\infty\)
Answer:C
The electrical resistivity of a thin copper wire and a thick copper rod are respectively ρ1m and ρ2m then _______
A. \(\rho_{1}>\rho_{2}\) B. \(\rho_{2}^{>} \rho_{1}\) C. \(\rho_{1}=\rho_{2}\) D. \(\frac{\rho_{2}}{\rho_{1}}=\infty\)