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Masses of 3 wires of same metal are in t...

Masses of 3 wires of same metal are in the ratio `1 : 2 : 3` and their lengths are in the ratio `3 : 2 : 1`. The electrical resistances are in ratio

A

`1: 4: 9`

B

`9: 4:1`

C

`1:2:3`

D

`27:6:1`

Text Solution

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The correct Answer is:
D
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Knowledge Check

  • Masses of three wires of same metal are in the ratio 1:2:3 and their lengths in the ratio 3:2:1. Electrical resistance of these wires will be in the ratio of :–

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