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The massses of the three wires of copper...

The massses of the three wires of copper are in the ratio 1 : 3 : 5. And their lengths are in th ratio 5 : 3 : 1. the ratio of their electrical resistance is

A

` 1: 3: 5`

B

`5 : 3 :1`

C

`1 : 25 : 125`

D

`125 : 15 : 1`

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