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A wire of resistance 1Omega is elongated...

A wire of resistance `1Omega` is elongated by 10%. The resistance of the elongated wire is

A

`1.1 Omega`.

B

`11.1 Omega`.

C

`1.21 Omega`.

D

`13.1 Omega`.

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Knowledge Check

  • A metallic wire of resistance of 12Omega is bent to form a square. The resistance between two diagonal points would be :

    A
    `12Omega`
    B
    `24Omega`
    C
    `6Omega`
    D
    `3Omega`

  • A uniform wire of 16 Omega resistance is made into the form of a square. Two opposite corners of the square are connected by a wire of resistance 16 Omega . The effective resistance between the other two opposite corners is

    A
    `32 Omega`
    B
    `8 Omega`
    C
    `16 Omega`
    D
    `4 Omega`

  • The resistance of a wire is 5 ohm at 50°C and 6 ohm at 100°C. The resistance of the wire at 0°C will be :

    A
    1 ohm
    B
    4 ohm
    C
    3 ohm
    D
    2 ohm

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    For two resistance wires joined in parallel, the resultant resistance is 6//5 Omega . When one of the resistance wire breaks the effective resistance becomes 2 Omega . Find the resistance of the broken wire.

    A copper wire has diameter 0.5mm and resistivity of 1.6xx10^(-8)Omega m. what will be the length of this wire to make its resistance 10Omega ? How much does the resistance change if the diameter is doubled ?

    A copper wire has diameter 0.5 mm and resistivity of 1.6xx10^(-8)Omegam . What will be the length of this wire to make its resistance 10Omega ? How much does the resistance change if the diameter is doubled?

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