Home
Class 12
PHYSICS
Find the resistance of 240 V - 200 watt ...

Find the resistance of `240 V - 200` watt electric bulb when glowing. If this resistance is `10` times the resistance at `0^(@)C` and the temperature of the glowing filament is `2000^(@)C`, then find the temperature coefficient of resistance of the filament.

Promotional Banner

Topper's Solved these Questions

  • ELECTROSTATIC FORCES, CHARGES AND FIELDS

    SL ARORA|Exercise Problems For Self Practice|1 Videos

  • MAGNETIC EFFECTS OF CURRENT

    SL ARORA|Exercise TYPE C|4 Videos

Similar Questions

Explore conceptually related problems

The positive temperature coefficient of resistance is for

The temperature coefficient of resistance of a semiconductor

The temperature coefficient of resistance of a conductor is

Find the resistance of 80 W, 240 V bulb.

Find the resistance of 60 W, 240 V bulb.

Temperature Coefficient Of Resistivityof Resistance

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

A copper coil has resistance of 20.0 Omega at 0^@C and a resistance of 26.4 Omega at 80^@C . Find the temperature coefficient of resistance of copper.

The resistance of a conductor at 15^(@)C is 16 Omega and at 100^(@)C is 20 Omega . What will be the temperature coefficient of resistance of the conductor ?

SL ARORA-HEATING EFFECT OF CURRENT-All Questions
  1. There are two electric bulbs rated 60W. 110V and 100W, 110V. They are ...

    Text Solution

    |

  2. Twenty one electric bulbs are connected in series with the mains of a ...

    Text Solution

    |

  3. Find the resistance of 240 V - 200 watt electric bulb when glowing. If...

    Text Solution

    |

  4. A thin metallic wire of resistance 100Omega is immersed in a calorimet...

    Text Solution

    |

  5. A copper electric kettle weighing 1000 g contains 900g of water at 20^...

    Text Solution

    |

  6. A coil of enamelled copper wire of resistance 50Omega is embedded in a...

    Text Solution

    |

  7. The heater coil of an elecric kettle is rated at 2000W,200V, How much ...

    Text Solution

    |

  8. A heating coil is connected in series with a resistance r. the coil is...

    Text Solution

    |

  9. A 10V battery of negligible internal resistance is charged by a 200V d...

    Text Solution

    |

  10. A dry cell of emf 1.6V and internal resistance 0.10 ohm is connected ...

    Text Solution

    |

  11. A dry cell of emf 1.5V and internal resistance 0.10 Omega is connecte...

    Text Solution

    |

  12. A series battery of 10 lead accumulators each of emf 2V and internal r...

    Text Solution

    |

  13. A series battery of 6 lead accumulators each of emf 2.0V and internal ...

    Text Solution

    |

  14. Power from a 64 V d.c. supply goes to charge a battery of 8lead accumu...

    Text Solution

    |

  15. A battery of emf epsilon and internal resistance r is connected across...

    Text Solution

    |

  16. A 24 V battery of internal resistance 4.0 Omega is connected to a vari...

    Text Solution

    |

  17. (a) An electric motor runs on a d.c. source of emf e and internal resi...

    Text Solution

    |

  18. Two batteries each of emf epsilon and internal resistance r, are conne...

    Text Solution

    |

  19. Two wires made of tinned copper having identical cross-section (=10^(-...

    Text Solution

    |

  20. A fuse with a circular cross-sectional radius of 0.15mm blows at 15A. ...

    Text Solution

    |