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A uniform metal wire of resistance R is ...

A uniform metal wire of resistance R is stretched to twice its length. Now this wire is halved, and the two halves are connected in parallel. The equivalent resistance is

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A uniform metal wire of resistance R is stretched to twice its length. Now this wire is halved and the two part are connected in parallel. The equivalent resistance is-

If a wire of resistance R is stretched to double its length, then the new resistance is:

If a wire of resistance R is stretched to twice its original length, the new resistance of the wire will be: