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[" Temperature of a resistance at "],[" temperature "t^(0)C" is "R=R_(0)(1+at+bt^(2))" ."],[" Here "R_(0)" is the temperature at "0^(0)C" ,the "],[" temperature coefficient of resistance at "],[" temperature "t" is: "]

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Resistance of a resistor at temperature t^(@)C is R_(f)=R_(0)(1+alpha t+beta t^(2)) . Here R_(0) is the resistance at 0^(@)C .The temperature coefficient of resistance at temperature t^(@)C is

What is temperature coefficient (T.C.)?

Knowledge Check

  • Resistance of a resistor at temperature t^@C is R_t =R_0 (1+alphat + betat^2) , where R_0 is the resistance at 0^@C . The temperature coeffcient of resistance at temperature t^@C is

    A
    `((1+alphat+betat^2))/(alpha+2beta t)`
    B
    `(alpha+2beta t)`
    C
    `(alpha +2 beta t)/((1 +alphat + beta t^2))`
    D
    `(alpha +2betat)/(2(1+alpaht +beta r^2))`

  • The ratio of the resistances of a conductor at a temperature of 15^(@)C to its resistance at a temperature of 37.5^(@)C is 4:5 . The temperature coefficient of resistance of the conductor is

    A
    `(1)/(25).^(@)C^(-1)`
    B
    `(1)/(50).^(@)C^(-1)`
    C
    `(1)/(80).^(@)C^(-1)`
    D
    `(1)/(75).^(@)C^(-1)`

  • The resistance of a wire at room temperature 30^@C is found to be 10 Om now to increase the resistance by 10% the temperature of the wire must be [the temperature coefficient of resistance of the material of the wire is 0.002 per @C ]

    A
    `36^@C`
    B
    `83^@C`
    C
    `63^@C`
    D
    `33^@C`

    • Similar Questions

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    The resistance of a wire at room temperature 30^(@)C is found to be 10 Omega . Now to increase the resistance by 10% , the temperature of the wire must be [ The temperature coefficient of resistance of the material of the wire is 0.002 per .^(@)C ]

    The specific heat of a substance at temperature at t^(@) c is s=at^(2)+bt+c . Calculate the amount of heat required to raise the temperature of m g of the substance from 0^(@) C to t_(0)^(@) C

    Find the resistance of 240 V - 200 watt electric bulb when glowing. If this resistance is 10 times the resistance at 0^(@)C and the temperature of the glowing filament is 2000^(@)C , then find the temperature coefficient of resistance of the filament.

    The resistance of a wire at room temperature 30^@C is found to be 10 Om now to increase the resistance by 10% the temperature of the wire must be [the temperature coefficient of resistance of the material of the wire is 0.002 per @C ]

    The resistances of a wire at temperatures t^(@)C and 0^(@)C are releated by

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