1.

The resistance of a wire of uniform diameter \[d\] and length \[L\] is \[R\]. The  resistance of another wire of the same material but diameter \[2d\] and length \[4L\] will be [CPMT 1984; MP PET 2002]

A.                    \[2R\]
B.                                      \[R\]
C.                    \[R/2\]
D.                                      \[R/4\]
Answer» C.                    \[R/2\]


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