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Two resistors A and B have their resistances $R_A\: and\: R_B$ with $R_A\: >\: R_B$. The resistivities of their material are related by

$\begin {array} {1 1} (A)\;\rho_A > \rho_B & \quad (B)\;\rho_A < \rho_B \\ (C)\;\rho_A = \rho_B & \quad (D)\;The \: information \: is\: insufficient \: to\: decide \end {array}$

 

1 Answer

Lengths and cross-sectional area is also needed.
Ans : (D)
answered Feb 13, 2014 by thanvigandhi_1
edited Mar 14, 2014 by thanvigandhi_1
 

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