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The resistance of a 20 cm long wire is 5...

The resistance of a 20 cm long wire is `5Omega`.The wireIs stretched to a uniform wire of length 40 cm. The resistance of the wire is:(a) `5Omega` (b)`10Omega` (c)`15Omega` (d)`20Omega`

A

`5Omega`

B

`10Omega`

C

`15Omega`

D

`20Omega`

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