Home
Class 12
PHYSICS
Which of the following has negative temp...

Which of the following has negative temperature coefficient of resistance?

A

Germanium

B

Iron

C

Aluminium

D

Copper

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • TEXTUAL QUESTIONS

    MODERN PUBLICATION|Exercise EXERCISE|507 Videos

  • STRUCTURE OF NUCLEUS

    MODERN PUBLICATION|Exercise EXERCISE|47 Videos

  • TEXUAL QUESTIONS

    MODERN PUBLICATION|Exercise EXERCISE|195 Videos

Similar Questions

Explore conceptually related problems

Which of the following has a negative temperature coefficient?

The temperature coefficient of a reaction is:

Of metals and alloys. Which has greater value of temperature coefficient of resistance?

Discuss the effect of temperature on the resistance of a conductor. Hence define the temperature coefficient of resistance. What is the unit of the temperature coefficient of resistance?

Which out of the following has minimum ignition temperature?

is the value of temperature coefficient of resistance always positive?

MODERN PUBLICATION-TEXTUAL QUESTIONS-EXERCISE
  1. The length of a wire is doubled. Its conductance will

    Text Solution

    |

  2. The length of a wire is doubled by pulling it.Find the new resistance.

    Text Solution

    |

  3. Which of the following has negative temperature coefficient of resista...

    Text Solution

    |

  4. Which of the following has a negative temperature coefficient?

    Text Solution

    |

  5. A wire has a resistance of 3.1 Omega at 30^@C and a resistance of 4....

    Text Solution

    |

  6. A wire has a resistance of 3.1Omega at 30^@C and a resistance of 4.5Om...

    Text Solution

    |

  7. Three bulbs of electric powers 40 W, 60 W and 100 W are connected in s...

    Text Solution

    |

  8. A 30 V . 90 W lamp is to be operated on a 120 V d.e. line for proper g...

    Text Solution

    |

  9. If a power of 100 W is being supplied across a potential difference of...

    Text Solution

    |

  10. A 10Omega electric heater operates on a 110 V line. The rate at which ...

    Text Solution

    |

  11. On 220 V supply, a heater heats a volume of water in 5 minutes time. O...

    Text Solution

    |

  12. Two heater coils separately take 10 minutes and 5 minutes to boil a ce...

    Text Solution

    |

  13. Five equal resistors, when connected in seires, dissipated 5 W power, ...

    Text Solution

    |

  14. If a wire of resistance 20 Omega is overed with ice and a voltage of 2...

    Text Solution

    |

  15. A wire is cut into 4 pieces, which are put together by sides to obtain...

    Text Solution

    |

  16. A student has 10 resistors each of resistance r, From the given resist...

    Text Solution

    |

  17. Which of the following is a secondary cell?

    Text Solution

    |

  18. The internal resistance of a cell is the resistance of

    Text Solution

    |

  19. The internal resistance of a cell of e.m.f. 2 V is 0.1 Omega. It is co...

    Text Solution

    |

  20. A battery of e.m.f. 10V and internal resistance 3 Omega is connected t...

    Text Solution

    |