Home
Class 12
PHYSICS
frequency of a.c. source is doubled. How...

frequency of a.c. source is doubled. How do R, `X_1` , `X_c` get affected?

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

The frequency of a.c. is doubled, what happens to inductive reactance?

The frequency of an ac supply is doubled, what happens to inductive reactance X_L and capacitive reactance X_c ?

The frequency of a.c. is doubled, what happens to capacitive reactance?

A variable frequency a.c. source is connected to a capacitor. How will the displacement current change with decrease in frequency.

A coil has resistance 30 ohm and inductive reactance 20 ohm at 50 Hz frequency. If an a.c. source of 200 V, 100 hz is connected across the coil, the current in the coil? Find the current of the coil

A variable-frequency a.c. source is connected to a capacitor.Will the displacement current increases or decreases with increases in frequency?

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.

MODERN PUBLICATION-ALTERNATING CURRENTS-EXERCISE
  1. frequency of a.c. source is doubled. How do R, X1 , Xc get affected?

    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

    |