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Two wires of the same material having le...

Two wires of the same material having lengths in the ratio `1 : 2` and diameters in the ratio `2 : 3` are connected in series with an accumulator. Compute the ratio of P.D. across the two wires.

A

`1/3`

B

`3/4`

C

`4/5`

D

`9/8`

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