1.

Two wires A and B of same material and same mass have radius 2rand r. If resistance of wire A is \[34\,\Omega \], then resistance of B will be                                         [RPET 1997]

A.                    \[544\,\Omega \]
B.                                      \[272\,\Omega \]
C.                    \[68\,\Omega \]         
D.            \[17\,\Omega \]
Answer» B.                                      \[272\,\Omega \]


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