Home
Class 10
PHYSICS
Give reasons for the following : Resisti...

Give reasons for the following : Resistivity of some materials if decreases suddenly to zero below a certain temperature.

Promotional Banner

Topper's Solved these Questions

  • LIGHT:REFLECTION AND REFRACTION

    MBD|Exercise EXAMPLE|150 Videos

Similar Questions

Explore conceptually related problems

Give reasons for the following: Square is also a parallelogram.

Give reason for the following question- Gun metal is an alloy.

Give reason for the following Chlamydomonas is motile.

Give reasons for the following: Leaf of Coriandrum is of decompound type.

Give reason for the following statement- Nichrome is an alloy.

Give reasons for the following : At room temperature, N_2 is much less reactive.

Give reasons for the following : Sodium and pottasium are stored in kerosene.

Give reason for the following Double fertilization is present is angiosperms.

Give reasons for the following statement- Chromium steel is an alloy.

MBD-ELECTRICITY-EXAMPLE
  1. How many joules are present in 1 kilowatt hour?

    Text Solution

    |

  2. Give reasons for the following: if you connect ammeter in parallel it ...

    Text Solution

    |

  3. Give reasons for the following : Resistivity of some materials if decr...

    Text Solution

    |

  4. What is the effect on resistance, if the length of wire is increased

    Text Solution

    |

  5. What is the effect on resistance, if the area of cross section is incr...

    Text Solution

    |

  6. Current of 100 mA flows through the filament of an electric bulb for 3...

    Text Solution

    |

  7. 60 coulomb of charge flows through a circuit for 5 minutes. Calculate ...

    Text Solution

    |

  8. Calculate the area of cross section of wire whose length is 1.0 m and ...

    Text Solution

    |

  9. Resistance of a metal of length 1 m is 26 Omegaat 20^@C If the diamete...

    Text Solution

    |

  10. In an electric circuit, a battery of five cells each of 2 v, resistors...

    Text Solution

    |

  11. An electric lamp,whose resistance is 20Omega and a conductor of 4Omega...

    Text Solution

    |

  12. 98 J of heat is produced each second in 2 Omega resistor.Find the pote...

    Text Solution

    |

  13. What is the (a) highest :(b) lowest total resistance that can be secur...

    Text Solution

    |

  14. An electric bulb of power 40 W is lighted daily for 8 hours for 15 day...

    Text Solution

    |

  15. A household uses the following electric appliance: Refrigerator of rat...

    Text Solution

    |

  16. A household uses the following electric appliance: Two electric fans o...

    Text Solution

    |

  17. An electric motor takes 5A form a 220 V line. Determine the power of t...

    Text Solution

    |

  18. Define energy.

    Text Solution

    |

  19. Define electric energy

    Text Solution

    |

  20. Define electric current and give its unit

    Text Solution

    |