Home
Class 12
PHYSICS
An electric bulb marked 40W-200 V is use...

An electric bulb marked 40W-200 V is used in a circuit of supply voltage 100V. Now its power is

A

100 W

B

40 W

C

20 W

D

10 W

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • TEXTUAL QUESTIONS

    MODERN PUBLICATION|Exercise EXERCISE|507 Videos
  • STRUCTURE OF NUCLEUS

    MODERN PUBLICATION|Exercise EXERCISE|47 Videos
  • TEXUAL QUESTIONS

    MODERN PUBLICATION|Exercise EXERCISE|195 Videos
MODERN PUBLICATION-TEXTUAL QUESTIONS-EXERCISE
  1. A wire of length l is drawn such that its diameter is reduced to half ...

    Text Solution

    |

  2. A wire of radius r has resistance R . If it is stretched to the wre of...

    Text Solution

    |

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

    Text Solution

    |

  4. Ten identical wires each having a resistance of 1Omega are connected i...

    Text Solution

    |

  5. Two resistance filaments of same length are connected first in series ...

    Text Solution

    |

  6. The internal resistance of a cell of e.m.f. 2 V is 0.1 Omega. It is co...

    Text Solution

    |

  7. Ten identical cells each of e.m.f. E and internal resistance r are con...

    Text Solution

    |

  8. Eels are able to generate current with biological cells called electro...

    Text Solution

    |

  9. What is the equivalent resistance between A and B in the given figure

    Text Solution

    |

  10. The equivalent resistance between A and B of the given figure circuit ...

    Text Solution

    |

  11. The instrument for the accurate measurement of the e.m.f. of a cell is...

    Text Solution

    |

  12. When a balance point is obtained in a potentiometer for finding the in...

    Text Solution

    |

  13. A potentiometer is connected between A and B and the balance point is ...

    Text Solution

    |

  14. Direction. In the follwing questions, a statement of assertion is foll...

    Text Solution

    |

  15. Direction. In the follwing questions, a statement of assertion is foll...

    Text Solution

    |

  16. Direction. In the follwing questions, a statement of assertion is foll...

    Text Solution

    |

  17. Direction. In the follwing questions, a statement of assertion is foll...

    Text Solution

    |

  18. Direction. In the follwing questions, a statement of assertion is foll...

    Text Solution

    |

  19. Direction. In the follwing questions, a statement of assertion is foll...

    Text Solution

    |

  20. Direction. In the follwing questions, a statement of assertion is foll...

    Text Solution

    |