Home
Class 12
PHYSICS
Copper and silicon is cooled from 300 K ...

Copper and silicon is cooled from 300 K to 60 K, the specific resistance : -

A

Increases in both

B

Decreases in both

C

Increases in aluminium but decreases in germanium

D

Decreases in aluminium and increases in germanium

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • Mock Test 25: PHYSICS

    AAKASH INSTITUTE ENGLISH|Exercise Example|59 Videos

  • Mock Test 28

    AAKASH INSTITUTE ENGLISH|Exercise EXAMPLE|32 Videos

Similar Questions

Explore conceptually related problems

A piece of copper and another of germanium are cooled from room temperature to 77 K, the resistance of -

In a closed vessel, a gas is heated from 300 K to 600 K the kinetic energy becomes/remain

When the pressure of 5 L of N_(2) is double and its temperature is raised from 300 K to 600 K, the final volume of the gas would be

A piece of copper and another of germanium are cooled from room temperature to 80 K . The resistance of

Calculate the amount of heat required to raise the temperature of 13.5 g aluminium from 300 K to 400 K, if specific heat of aluminium is 0.9 J (.^(@)k)^(-1) g^(-1) .

Calculate the amount of heat required to raise the temperature of 13.9 g aluminium from 300 K to 400 K , if specific heat of aluminium is 0.9 J^(@)C^(-1) g^(-1) .

An open flask containing air is heated from 300K to 500K . What percentage of air will be escaped to the atmosphere, if the pressure is kept constant ?

When 1.5 mol of a gas is heated at constant volume from 300 K to 350 K and the heat supplied to the gas is 750 J then the correct option is

An open flask containing air is heated from 300K to 500K . What percentage of air will be escaped to the atmosphere, if the pressure is kept constant ?

An open flask containing air is heated from 300K to 500K . What percentage of air will be escaped to the atmosphere, if the pressure is kept constant ?

AAKASH INSTITUTE ENGLISH-Mock test 26-EXAMPLE
  1. Six identical capacitors are connected as shown in figure. Capacitance...

    Text Solution

    |

  2. The charge supplied by the battery in the circuit shown in the figure

    Text Solution

    |

  3. The energy stored in 4 muF capacitors is

    Text Solution

    |

  4. Two identical parallel plate air capacitors are connected in series to...

    Text Solution

    |

  5. Six identical capacitors each of capacitance 2 muF are connected as sh...

    Text Solution

    |

  6. Van de Graaff generator is

    Text Solution

    |

  7. Two capacitors C1 = C and C2 = 3C are connected as shown in figure, In...

    Text Solution

    |

  8. A capacitor of capacitance C is initially charged to a potential diffe...

    Text Solution

    |

  9. A current of 4 A is flowing in a cylindrical conductor. The number of ...

    Text Solution

    |

  10. A current 0.5 amperes flows in a conductor of cross-sectional area of ...

    Text Solution

    |

  11. The plot represents the flow of current through a wire at three differ...

    Text Solution

    |

  12. The specific resistance of a conductor increases with

    Text Solution

    |

  13. Copper and silicon is cooled from 300 K to 60 K, the specific resistan...

    Text Solution

    |

  14. The resistance of a metallic conductor increases with temperature due ...

    Text Solution

    |

  15. The resistivity of a wire at 20^circ C and 100^circ C is 3 Omega-m and...

    Text Solution

    |

  16. The drift velocity of free electrons in a conductor of length 6 m is 0...

    Text Solution

    |

  17. Resistivity of a material of wire is 3 * 10^(-6) Omega-m and resistanc...

    Text Solution

    |

  18. Two conductors of equal volumes having non-uniform cross-section are j...

    Text Solution

    |

  19. A resistance R of thermal coefficient of resistivity alpha is connect...

    Text Solution

    |

  20. The area of cross-section of a current carrying conductor is Acirc and...

    Text Solution

    |