Home
Class 12
PHYSICS
When electric bulbs of same power, but d...

When electric bulbs of same power, but different marked voltage are connected in series across the power line, their brightness will be : 

A

proportional to their marked voltage

B

inversely proportional to their marked voltage

C

proportional to the square of their marked voltage

D

inversely proportional to the square of their marked voltage

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • CURRENT ELECTRICITY

    AAKASH SERIES|Exercise EXERCISE - IB|44 Videos

  • CURRENT ELECTRICITY

    AAKASH SERIES|Exercise EXERCISE - II|84 Videos

  • CURRENT ELECTRICITY

    AAKASH SERIES|Exercise PROBLEMS|94 Videos

  • CURRENT ELECTRICITY

    AAKASH SERIES|Exercise PROBLEMS (LEVEL-II)|26 Videos

  • DUAL NATURE OF RADIATION AND MATTER

    AAKASH SERIES|Exercise PRACTICE EXERCISEX|44 Videos
AAKASH SERIES-CURRENT ELECTRICITY-EXERCISE - IA
  1. Appliances based on heating effect of current work on

    Text Solution

    |

  2. The electric power transferred by a cell to an external resistance is ...

    Text Solution

    |

  3. When electric bulbs of same power, but different marked voltage are co...

    Text Solution

    |

  4. Choose the correct statement

    Text Solution

    |

  5. For a cell which charging in a circuit

    Text Solution

    |

  6. The dimensional formula of the emf of a source of current are same as ...

    Text Solution

    |

  7. Internal resistance of a cell depends on

    Text Solution

    |

  8. When cells are arranged in series

    Text Solution

    |

  9. To supply maximum current, cells should be arrange in

    Text Solution

    |

  10. The terminal Pd of a cell is equal to its emf if

    Text Solution

    |

  11. Back emf of a cell is due to

    Text Solution

    |

  12. When an electric cell drives current through load resistance, its Back...

    Text Solution

    |

  13. Which depolarizers are used to neutralizes hydrogen layer in cells

    Text Solution

    |

  14. Two batteries of emfs epsilon(1) and epsilon(2) (epsilon(2) gt epsilon...

    Text Solution

    |

  15. A battery consists of a variable number n of identical cells having in...

    Text Solution

    |

  16. A cell of emf E has an internal resistance r & is connected to rheosta...

    Text Solution

    |

  17. n identical cells, each of emf epsilon and iternal resistance r, are j...

    Text Solution

    |

  18. n identical cells, cach of emf epsilon and internal resistance r, are ...

    Text Solution

    |

  19. A cell of emf E having an internal resistance r is connected to an ext...

    Text Solution

    |

  20. Kirchhoff's law of junctions (first law), Kirchhoff's law of meshes (s...

    Text Solution

    |