Home
Class 12
PHYSICS
A metallic wier has a resistance of 120 ...

A metallic wier has a resistance of `120 Omega at 20^@C.` Find the temperature at which the resistance of same metallic wire rises ot `240 Omega` where the teperature coefficient of the wire is `2xx10^(-40) C^(-1).`

Text Solution

AI Generated Solution

To solve the problem step by step, we will use the formula for the resistance of a metallic wire as a function of temperature: \[ R_t = R_0 (1 + \alpha (t - t_0)) \] Where: - \( R_t \) = Resistance at temperature \( t \) - \( R_0 \) = Resistance at reference temperature \( t_0 \) - \( \alpha \) = Temperature coefficient of resistance ...
Promotional Banner

Topper's Solved these Questions

  • ELECTRIC CURRENT AND CIRCUIT

    CENGAGE PHYSICS|Exercise Solved Examples|12 Videos

  • ELECTRIC CURRENT AND CIRCUIT

    CENGAGE PHYSICS|Exercise Exercise 5.1|28 Videos

  • ELECTRIC CURRENT & CIRCUITS

    CENGAGE PHYSICS|Exercise Kirchhoff s law and simple circuits|15 Videos

  • ELECTRIC FLUX AND GAUSS LAW

    CENGAGE PHYSICS|Exercise MCQ s|38 Videos

Similar Questions

Explore conceptually related problems

A platinum wire has a resistance of 2.62 Omega at 15 ^(0)C and 3.29 Omega at 80 ^(@)C . Find the temperature coefficient of the resistance of platinum wire.

At room temperature (27^@C) the resistance of a heating element is 100 Omega. Wheat is the temperature of the element is the resistace is found to 117Omega? Given that the teperature coefficint of the meterail of the resistor is 1.70xx10^(-40) C^(-1)

At room temperature (27^(@)C) , the resistance of a heating element is 100 Omega . What is the temperature of the element if the resistance is found to be 117 Omega , given that temperature coefficient of the resistor material is 1.70xx10^(-4) .^(@)C^(-1) .

A platinum resistance thermometer has a resistance of 50 Omega at 20^(@)C . When dipped in a liquid the resistance becomes 76.8 Omega . The temperature coefficient of resistance for platinum is alpha = 3.92 xx 10^(-3)//""^(@)C . The temperature of the liquid is

A wire has a resistance of 3.1 Omega at 30°C and a resistance 4.5 Omega at 100°C. The temperature coefficient of resistance of the wire

A platinum wire has a resistance of 10Omega at 0^@C and 20Omega at 273^@C. find the value of temperaure cofficient of platinum.

A plantinum wire has resistance of 10 Omega at 0^(@)C and 20 Omega at 273^(@)C . Find the value of coefficient of resistance.

A conducting wire has resistance 16 Omega at 15^0 C and 20 Omega at 100^0 C find temperature of coeffecient of resistance