The masses of the three wires of copper ...

The masses of the three wires of copper are in the ratio `5:3:1` and their lengths are in the ratio `1:3:5`. The ratio of their electrical resistances is

A

`1:3:5`

B

`5:3:1`

C

`1:15:125`

D

`125:15:1`

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The correct Answer is:

C

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