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A wire of length 10 cm and area of cross...

A wire of length 10 cm and area of cross section `1 mm^2` has a resistance of `5 Omega`. Find the resistivity of the material of the wire.

Text Solution

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`5xx10^(-5) Omega` m
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Knowledge Check

  • A nichrome wire of length 100 cm and area of cross-section 0.5 m m^(2) has a resistance of 2.2 Omega . The resistivity of nichrome is

    A
    `110Omega`
    B
    `0.11Omega m`
    C
    `121Omega m`
    D
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  • An electric wire of length ‘ I ’ and area of cross-section a has a resistance R ohm s. Another wire of the same material having same length and area of cross-section 4a has a resistance of

    A
    `4R`
    B
    `R//4`
    C
    `R//16`
    D
    `16R`

  • A copper wire of length 2m and area of cross-section 1.7 xx 10^(-6)m^(2) has a resistance of 2 xx 10^(-2) ohms. Calculate the resistivity of copper.

    A
    `1.7 xx 10^(-8)`
    B
    `1.7 xx 10^(-9)`
    C
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    D
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    • Similar Questions

    Explore conceptually related problems

    The resistance of a wire of length 80 cm and of uniform area of cross-section 0.025 cm^2 , is found to be 1.50 ohm. Calculate the resistivity of the wire.

    A nicrome wire of length 100cm and radius 0.36 mm has a resistance of 1.5Omega . Calculate the resistivity of nicrome and also its conductivity.

    A copper wire of length 50cm and area of cross-section 10^(-6)m^(2) caries a current of 1A .If the resistivity of copper is 1.8times10^(-8)Omegam .The electrical field across the wire is

    Find the resistance of a copper coil of total wire-length 10m and area of cross section 1.0mm^(2). What would be the resistance of a similar coil of aluminium? The resistivity of copper =1.7xx10^(-8)(Omega)m and that of aluminium 2.6xx10^(-8)(Omega).

    A wire 1.0 m long, 0.2 mm in diameter, has a resistance of 10 Omega . Calculate the resistivity of its material.

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