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

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

`40 Omega`

`(40)/(3) Omega`

`(5)/(2) Omega`

`100 Omega`

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