Two wires of same material and having le...

Two wires of same material and having length in the ratio 2:3 are connected in series. The P.D across the wire are 4.2V and 3.6V respectively. The ratio of their radii

A

`2:sqrt7`

B

`sqrt7:2`

C

`2:7`

D

`7:2`

Text Solution

Verified by Experts

The correct Answer is:

A

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