Home
Class 12
PHYSICS
A lamp and a resistance are connected in...

A lamp and a resistance are connected in series to a 220 V d.c. source. What will happen to glow of the lamp, when same combination is connected to a 220 V - 50 Hz a.c. supply?

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 lamp is connected in series with an inductor to a d.c. source. What will happen to its glow, when it is connected directly to the same source? Explain your answer.

A lamp is connected in series with a capacitor to a high frequency a.c. source. How will the glow of the lamp change, when it is connected directly to the same source? Explain your answer.

A lamp is connected in series with a capacitor. What will happen if d.c.or a.c. is connected to current?

An electric lamp of 200 ohm and a toaster of 100 ohm are connected in parallel to a 220 V electricity source. What will be resistance of an electric iron which when connected to the same electric source permits the same current as the total current flowing through both the appliances described above?

An air core coil and an electric bulb are connected in series across a 220V-50Hz a.c. source. The bulb glows with some brightness. How will the glow of the bulb be affected on introducing a capacitor in series in the circuit? Justify your answer.

An electric lamp of 200 ohm and a toaster of 100 ohm are connected in parallel to a 220 V electricity source. Calculate the powre of the electric iron.

A 100 Omega resistor is connected to a 220 V, 50 Hz ac supply. What is the rms value of current in the circuit?

MODERN PUBLICATION-ALTERNATING CURRENTS-EXERCISE
  1. A lamp and a resistance are connected in series to a 220 V d.c. source...

    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

    |