Home
Class 12
PHYSICS
At room temperature (27.0^@C) the resist...

At room temperature `(27.0^@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 the temperature coefficient of the material of the resistor is `(1.70 xx 10^(-4))^@C^(-1)`.

Text Solution

AI Generated Solution

To solve the problem, we will use the formula for resistance change with temperature, which is given by: \[ R_t = R_0(1 + \alpha(T - T_0)) \] Where: - \( R_t \) is the resistance at temperature \( T \) ...
Promotional Banner

Topper's Solved these Questions

  • ATOMS

    NCERT ENGLISH|Exercise Exercise|17 Videos
  • DUAL NATURE OF RADIATION AND MATTER

    NCERT ENGLISH|Exercise All Questions|32 Videos

Similar Questions

Explore conceptually related problems

The resistance of a heating is 99Omega at room temperature. What is the temperature of the element if the resistance is found to be 116 Omega (Temperature coefficient of the material of the resistor is 1.7xx10^(-4)^(2).C^(-1) )

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^(-4) C^(-1).

The resistance of a wire at 20^(@)C is 20Omega and at 500^(@)C is 60Omega . At which temperature its resistance will be 25Omega ?

The resistance of a thin silver wire is 1.0 Omega at 20^@C . The wire is placed in a liquid bath and its resistance rises to 1.2 Omega . What is the temperature of the bath? alpha for silver is 3.8xx10^03//(.^(@) C)

The resistance of a thin silver wire is 1.0 Omega at 20^@C . The wire is placed in a liquid bath and its resistance rises to 1.2 Omega . What is the temperature of the bath? alpha for silver is 3.8xx10^-3//(.^(@) C)

A wire has a resistance of 2.5Omega at 28^(@)C and a resistance of 2.9Omega at 100^(@)C . The temperature coefficient of resistivity of material of the wire is

Resistance of a metal wire of length 1 m is 26 Omega at 20^@ C . If the diameter of the wire is 0.3 mm , what will be the resistivity of the metal at that temperature ? .

If the resistance of a conductor is 5 Omega at 50^(@)C and 7Omega at 100^(@)C then the mean temperature coefficient of resistance of the material is

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 metallic wire has a resistance of 3.0 Omega at 0^@C and 4.8 Omega at 150^@C . Find the temperature coefficient of resistance of its material.

NCERT ENGLISH-CURRENT ELECTRICITY-All Questions
  1. A network of resistances is connected to a 16 V battery with internal ...

    Text Solution

    |

  2. Battery of 10 V and negligible internal resistance is connected across...

    Text Solution

    |

  3. The four arms of a Wheatstone bridge (Fig. 3.26) have the following re...

    Text Solution

    |

  4. In a meter bridge, the null points is found at a distance of 33....

    Text Solution

    |

  5. The storage battery of a car has an emf of 12 V. If the internal resis...

    Text Solution

    |

  6. A battery of emf 10 V and internal resistance 3 Omega is connected to...

    Text Solution

    |

  7. (a) Three resistors 1 Omega, 2Omega and 3 Omega are combined in series...

    Text Solution

    |

  8. (a) Three resistors 2 Omega, 4 Omega and 5 Omega are combined in paral...

    Text Solution

    |

  9. At room temperature (27.0^@C) the resistance of a heating element is 1...

    Text Solution

    |

  10. A negligibly small current is passed through a wire of length 15 m and...

    Text Solution

    |

  11. A silver wire has a resistance of 2.1 Omega at 27.5^@C, and a resistan...

    Text Solution

    |

  12. Determine the current in each branch of the network shown in fig.

    Text Solution

    |

  13. (i) In a metre bridge, the balance point is found to be at 39.5 cm fro...

    Text Solution

    |

  14. A storage battery of emf 8.0 V and internal resistance 0.5 Omega is be...

    Text Solution

    |

  15. In a potentiometer arrangement, a cell of emf 1.25 V gives a balance p...

    Text Solution

    |

  16. The number density of free electrons in a copper conductor is estimate...

    Text Solution

    |

  17. The earth's surface has a negative surface charge density of 10^(-9) C...

    Text Solution

    |

  18. What conclusion can you draw from the following observations on a resi...

    Text Solution

    |

  19. (a) Given n resistors each of resistance R. How will you combine them ...

    Text Solution

    |

  20. Determine the current drawn from a 12V supply with internal resistance...

    Text Solution

    |