Home
Class 11
PHYSICS
Is the value of temperature coefficient ...

Is the value of temperature coefficient is always positive ?

Text Solution

Verified by Experts

In general ist value is positive, but some definite cases like expansion of water between `0^(@)C` to `4^(@)C`, it is negative.
Promotional Banner

Topper's Solved these Questions

  • THERMAL PROPERTIES OF MATTER

    KUMAR PRAKASHAN|Exercise Section - C Objective Questions (VSQs) Are the following Statements True or False ?|8 Videos

  • THERMAL PROPERTIES OF MATTER

    KUMAR PRAKASHAN|Exercise Section - C Objective Questions (VSQs) Fill in the Blank|6 Videos

  • THERMAL PROPERTIES OF MATTER

    KUMAR PRAKASHAN|Exercise Section - B Numerical From .DARPAN. Based On Textbook|7 Videos

  • SYSTEMS OF PARTICLES AND ROTATIONAL MOTION

    KUMAR PRAKASHAN|Exercise SECTION-F (SECTION-D) QUESTIONS PAPER|1 Videos

  • THERMODYANMICS

    KUMAR PRAKASHAN|Exercise Question Paper|11 Videos

Similar Questions

Explore conceptually related problems

What is the unit of temperature coefficient?

For metals temperature coefficient of resistivity is positive or negative ?

Consider the MB shown in the diagram, let the resistance X have temperature coefficient alpha_(1) and the resistance from the RB have the temperature coefficient alpha_(2) . Let the reading of the meter scale be 10 cm from the LHS. if the temperature of the two resistance increase by small temperature DeltaT then what is the shift in the position of the null point ? Neglect all the other changes in the bridge due to temperature rise.

At what temperature will the resistannce of a copper wire become three times its value at 0^(@)C (Temperature coefficient of resistance for copper =4xx10^(-3)"per".^(@)C :-

Two wires of resistance R_(1) and R_(2) have temperature coefficient of resistance alpha_(1) and alpha_(2) respectively. These are joined in series. The effective temperature coefficient of resistance is

At . . . . temperature coefficient of volume expansion will be zero.

Two equal resistance at 0^(@)C with temperature coefficient of resistance alpha_(1) and alpha_(2) joined in series act as a single resistance in a circuit the temperature coefficient of their single resistance will be

On what does the value of coefficient of linear expansion depend ?

Assertion: meterbridge wire is made up of manganin Reason: The temperature coefficient of resistance is very small for manganin

KUMAR PRAKASHAN-THERMAL PROPERTIES OF MATTER-Section - C Objective Questions (VSQs)
  1. Give the values of some definite points on standard (Kelvin) scale.

    Text Solution

    |

  2. Write principle of calorimeter.

    Text Solution

    |

  3. Is the value of temperature coefficient is always positive ?

    Text Solution

    |

  4. Write SI and CGS unit of heat and give their relation.

    Text Solution

    |

  5. What is temperature gradient ?

    Text Solution

    |

  6. When temperature gradient is considered as positive and negative ?

    Text Solution

    |

  7. Value of temperature gradient is 80^(@) C/m on a rod of 0.5 m length. ...

    Text Solution

    |

  8. Are rate of heat emission and rate of cooling same ? Explain this.

    Text Solution

    |

  9. What power is gained by a man when he eats 100 g ice in one minute ? L...

    Text Solution

    |

  10. In day of summer the glass of water of ice becomes hot on table with r...

    Text Solution

    |

  11. What is called absolute zero temp ?

    Text Solution

    |

  12. On what does the value of coefficient of linear expansion depend ?

    Text Solution

    |

  13. Give the value of coefficient of volume expansion at 0^(@)C for ideal ...

    Text Solution

    |

  14. Give value of coefficient of volume expansion at room temperature for ...

    Text Solution

    |

  15. On what value of alpha(V) depends ? Write its unit.

    Text Solution

    |

  16. On which fcator does the thermal conductivity depend ?

    Text Solution

    |

  17. On what the value of heat capacity depends ?

    Text Solution

    |

  18. On which factor does the required amount of heat depend to increase te...

    Text Solution

    |

  19. Write dimensional formula of heat capacity.

    Text Solution

    |

  20. By what the temperature difference can be determined if the state of s...

    Text Solution

    |