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A wire has a resistance of 16 Omega. It ...

A wire has a resistance of `16 Omega`. It is melted and drawn into a wire of half its length. What is the percentage change in its resistance?

A

0.25

B

0.5

C

0.75

D

1

Text Solution

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Knowledge Check

  • If a copper Wire is stretched to make it 0.1% longer, the percentage change in its resistance is

    A
    `0.2%` increase
    B
    `0.2%` decrease
    C
    `0.1%` increase
    D
    `0.1%` decrease

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