Home
Class 10
PHYSICS
Two lamps A rated 100 watt 220 V and B r...

Two lamps A rated 100 watt 220 V and B rated 60 watt 220 V are connected in series to electric main supply of 220 V. the ratio of heat produced in lamp A to the lamp B would be

A

`3:5`

B

`5:3`

C

`4:5`

D

`5:4`

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • ELECTRICITY

    MODERN PUBLICATION|Exercise EXERCISE|303 Videos

  • MAGNETIC EFFECTS OF ELECTRIC CURRENT

    MODERN PUBLICATION|Exercise EXERCISE|265 Videos

Similar Questions

Explore conceptually related problems

Two lamps, one rated 100 W at 220 V and other 60 W at 220 V, are connected in parallel to electric main supply. What current is drawn from the line if the supply voltage is 220 V?

Two lamps, one rated 100 W at 220 V, and the other 20W at 220V, are connected in parallel to electric mains supply. What current is drawn from the line if the supply voltage is 220V?

Two lamps, one rated 60 W at 220V and the other 40 W at 220 V are connected in parallel to the electric supply at 220V. Calculate the current drawn from the electric supply.

Two lamps, one rated 60 W at 220V and the other 40 W at 220 V are connected in parallel to the electric supply at 220V. Calculate the total energy consumed by the two lamps together when they operate for one hour.

If two bulbs of wattage 25 and 100 respectively each rated at 220 volt are connected in series with the supply of 440 volt, bulb will get fused?

A lamp rated 100 W at 220 V is connected to the mains electric supply. What current is drawn from the supply line if the voltage is 220V.

A 20 watt, 50 volt filament is connected in series to an a.c. mains of 250 volt - 50 hertz. Calculate the value of the capacitor required to run the lamp.

MODERN PUBLICATION-ELECTRICITY-EXERCISE
  1. The value of equivalent resistance between the points A and B in the g...

    Text Solution

    |

  2. What is the equivalent resistance between any two vertex of a triangle...

    Text Solution

    |

  3. Two lamps A rated 100 watt 220 V and B rated 60 watt 220 V are connect...

    Text Solution

    |

  4. A bulb(220 V, 60 W) is operated on 110V supply then power developed in...

    Text Solution

    |

  5. If the ammeter in the given circuit reads 2A, the resistance R is

    Text Solution

    |

  6. An electric bulb marked 40W-200 V is used in a circuit of supply volta...

    Text Solution

    |

  7. If two identical heaters each rated as 1000 W. 220V are connected in p...

    Text Solution

    |

  8. What is the maximum resistance which can be made using five resistors ...

    Text Solution

    |

  9. A cylindrical conductor of length l and uniform are of cross section A...

    Text Solution

    |

  10. The resistivtiy does not change if

    Text Solution

    |

  11. In an electrical circuit two resistors of 2 ohm and 4 ohm espectively ...

    Text Solution

    |

  12. A number of cells when connected in series from

    Text Solution

    |

  13. In a voltmeter there are 20 divisin between the 0 mark and 0.5 V mark....

    Text Solution

    |

  14. Which of the following statements does not represent ohm's law?

    Text Solution

    |

  15. True or false The resistance of ammeteer is very high.

    Text Solution

    |

  16. True or false In a circuit resistance is doubled the current to half.

    Text Solution

    |

  17. True or false Germanium is a substance whose resistance decreases with...

    Text Solution

    |

  18. True or false A bird perched on a high voltage wire is killed by the c...

    Text Solution

    |

  19. True or false Volt is represented by joule/coulomb.

    Text Solution

    |

  20. Fill ups Among silver and copper……………is a better conductor.

    Text Solution

    |