Two wires of the same metal have the sam...

Two wires of the same metal have the same length, but their cross-sections are in the ratio of `3:1`. They are joined in series. The resistance of the thicker wire is `10 Omega`. The total resistance of the combinations will be

`40 Omega`

`40//3 Omega`

`5//2 Omega`

`100 Omega`

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