Home
Class 12
PHYSICS
A light bulb is rated at 100 W for a 220...

A light bulb is rated at 100 W for a 220 V supply. Find
(a) the resistance of the bulb.
(b) the peak voltage of the source
(c ) the rms current through the bulb.

Text Solution

Verified by Experts

The correct Answer is:
484 `Omega` ,311 V , 0.45 A
Promotional Banner

Topper's Solved these Questions

  • ALTERNATING CURRENT

    MODERN PUBLICATION|Exercise CONCEPTUAL QUESTIONS|25 Videos
  • ALTERNATING CURRENT

    MODERN PUBLICATION|Exercise TOUGH & TRICKY PROBLEMS|12 Videos
  • ALTERNATING CURRENT

    MODERN PUBLICATION|Exercise CHAPTER PRACTICE TEST|16 Videos
  • ATOMS

    MODERN PUBLICATION|Exercise Chapter Practice Test|16 Videos

Similar Questions

Explore conceptually related problems

A light bulb is rated at 100 W for a 220 V ac supply . The resistance of the bulb is

A light bulb is rated 100W for a 220V supply. The resistance of the bulb and the peak voltage of the source respectively are

For a light bulb rated at 110 W for a 200 V supply calculate its resistance and peak voltage of the source. Also calculate the runs current through the bulb.

A light bulb is rated 100 W for 220 V ac supply of 50 Hz. Calculate (i) the resistance of the bulb, (ii) the rms current through the bulb.

A light bulb is rated 200 W for 220 V supply at 50 Hz. Calculate resistance of the bulb and rms current through the bulb.

A light bulb is rated 150 W for 220 V ac supply of 60 Hz. Calculate (i) the resistance of the bulb, (ii) the rms current through the bulb.

A bulb of 40 W is connected across a source of 220 V . Find the resistance of the bulb.

An electric bulb is rated at 110 W 220 V supply . Find the r.m.s curret flowing through the bulb.

[" -) A light bulb is rated "100W" for "220V" ac supply of "50Hz" .Calculate "],[" i) the resistance of the bulb."],[" ii) the rms current through the bulb "]

An electric bulb is rated as 50 W and 200 V . Find : (a) resistance (b) peak votlage of source .

MODERN PUBLICATION-ALTERNATING CURRENT -PRACTICE PROBLEMS
  1. Effective value of current in a circuit connected across an AC source ...

    Text Solution

    |

  2. Calculate the peak value of voltage and mean value of voltage during a...

    Text Solution

    |

  3. A light bulb is rated at 100 W for a 220 V supply. Find (a) the resi...

    Text Solution

    |

  4. A alternating voltage given by V = 140 sin 314 t is connected across a...

    Text Solution

    |

  5. A resistor of resistance 50 Omega is connected to a power source at 2...

    Text Solution

    |

  6. A resistor of resistance 100 Omega is connected across an alternate po...

    Text Solution

    |

  7. A 10 Omega resistor is connected across an alternating power supply of...

    Text Solution

    |

  8. An inductor of 5 m H is connected in series with a resistor of resista...

    Text Solution

    |

  9. Calculate the reactance of 10 m H inductor connected to an AC source w...

    Text Solution

    |

  10. An inductor of negligible resistance and inductance 1 H is connected a...

    Text Solution

    |

  11. A pure inductor of 25.0 mH is connected to a source of 220 V. Find the...

    Text Solution

    |

  12. An inductor of inductance 5 H is connected across an alternating power...

    Text Solution

    |

  13. Calculate the value of inductance of an inductor connected across an a...

    Text Solution

    |

  14. Calculate the rms value of current passing through a 0.5 muF capacito...

    Text Solution

    |

  15. A 2muF capacitor is connected across an AC power supply . Calculate t...

    Text Solution

    |

  16. With increase in frequency of an AC supply, the capacitive reactance:

    Text Solution

    |

  17. A 15.0 muF capacitor is connected to a 220 V, 50 Hz source. Find the c...

    Text Solution

    |

  18. A capacitor is connected to an AC supply at 30 Hz. The reactance of th...

    Text Solution

    |

  19. A capacitor of capacitance 10 muF is connected to a 220 V , 30 Hz alt...

    Text Solution

    |

  20. An inductor of inductance L Henry is connected to an AC supply of 12 V...

    Text Solution

    |