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The resistance of a wire is R ohm. What ...

The resistance of a wire is R ohm. What will be its new resistance if it is stretched to n times its original length ?

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Knowledge Check

  • The resistance of a wire is 'R' ohm. If it is melted and stretched to 'n' times its original length, its new resistance will be:

    A
    `(R )/(n) `
    B
    `n^(2)R`
    C
    `(R )/(n^(2))`
    D
    nR

  • The resistance of a wire is r ohm. If it is melted and stretched to n times its original length , its new resistance will be

    A
    `R/n`
    B
    `n^2R`
    C
    `R/n^2`
    D
    nR

  • The resistance of a wire is 'R' ohm. If it is melted and stretched to n times its origianl length, its new resistance will be

    A
    `(R )/(n)`
    B
    `n^(2) R`
    C
    `(R )/(n^(2))`
    D
    `n R`

    • Similar Questions

    Explore conceptually related problems

    Assertion (A): When a resistance wire is stretched so as to make its length double, its resistance becomes 4 times of its original value. Reason (R ): Resistance of a conductor is directly proportional to its length and inversely proportional to its cross section area.

    A copper wire of resistance R_(0) is strerched till its length is increased to n times of its original length. What will be its new resistance?

    The resistance of wire is 100Omega . If it is stretched to 4 times its original length , then its new resistance will be

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