Home
Class 12
PHYSICS
An electric lamp, which runs at 100 volt...

An electric lamp, which runs at 100 volt d.c. and 10 ampere current, is to be run on 220 volt - 50 cycles a.c. mains. Calculate the inductance of the required choke coil.

Promotional Banner

Topper's Solved these Questions

  • ALTERNATING CURRENTS

    MODERN PUBLICATION|Exercise EXERCISE|201 Videos

  • CAPACITOR

    MODERN PUBLICATION|Exercise EXAMPLE|262 Videos

Similar Questions

Explore conceptually related problems

A 60 volt , 10 watt lamp is to be run on 100 volt-60 hertz a.c. mains. Calculate the inductance of the choke required

An electric device, which runs at 80 volt d.c. and consumes 10 A current , is connected to 100 vol-50 Hz a.c. supply through a choke. Calculate the inducance of the choke coil for the safe working of the device.

An electric device which runs at 80 volt d.c. and consumes 10 A is connected to 100 V, 50 Hz a.c. supply through a choke. Calculate the inductance of the choke for safe working of the device.

An electric lamp marked 220 V d.c. consumes a current 10A. It is connected to a 250 V - 50 Hz a.c. mains through a choke. Calculate the inductance of the choke required.

A 60 volt , 10 watt lamp is to be run on 100 volt-60 hertz a.c. mains. Calculate if resistance is to be used instead of choke, what wil be its value?

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.

A heater is rated as 220 volts, 880 watts. What is the current drawn by the heater when connected to a 220V a.c. mains? Calculate the resistance of heater.

MODERN PUBLICATION-ALTERNATING CURRENTS-EXERCISE
  1. An electric lamp, which runs at 100 volt d.c. and 10 ampere current, i...

    Text Solution

    |

  2. A lamp is connected in series with a capacitor to a high frequency a.c...

    Text Solution

    |

  3. An air core coil and an electric bulb are connected in series across a...

    Text Solution

    |

  4. Answer the following questions: A choke coil in series with a lamp is ...

    Text Solution

    |

  5. A lamp is connected in series with a capacitor. What will happen if d....

    Text Solution

    |

  6. Explain : voltages across L and C in series are 180^(@) out of phase, ...

    Text Solution

    |

  7. The total impedance of a circuit decreases, when a capacitor is added ...

    Text Solution

    |

  8. When an a.. Circuit with a series combination of inductance, capacitan...

    Text Solution

    |

  9. When a capacitor is connected in series LR circuit the alternating cur...

    Text Solution

    |

  10. An alternating voltage of frequency f is applied across LCR circuit. L...

    Text Solution

    |

  11. An alternating voltage of frequency f is applied across LCR circuit. L...

    Text Solution

    |

  12. Give applications of resonance in series LCR circuit.

    Text Solution

    |

  13. An capacitor C, a variable resistor R and a bulb B are connected in se...

    Text Solution

    |

  14. An capacitor C, a variable resistor R and a bulb B are connected in se...

    Text Solution

    |

  15. A capacitor with capacitance C and a coil with active resistance R and...

    Text Solution

    |

  16. An inductor L of inductance X(L) is connected in series with a bulb B ...

    Text Solution

    |

  17. An inductor L of inductance X(L) is connected in series with a bulb B ...

    Text Solution

    |

  18. As shown in figure an electric lamp having coil of negligible inductan...

    Text Solution

    |

  19. As shown in figure an electric lamp having coil of negligible inductan...

    Text Solution

    |

  20. In the circuit shown below R represents an electric bulb. If the frequ...

    Text Solution

    |

  21. Show in the figure, two electric circuits A and B. Calculate the ratio...

    Text Solution

    |