Home
Class 12
PHYSICS
A circuit draws a power of 600 W from an...

A circuit draws a power of 600 W from an AC source of 200 V 50 Hz . The power factor of the circuit is 0.6 . The current lags behing the voltage . What value of capacitance should be connected in the circuit to bring its power factor to unity?

Text Solution

AI Generated Solution

To solve the problem, we need to determine the capacitance that should be connected to the circuit to bring its power factor to unity. Here are the steps to arrive at the solution: ### Step 1: Calculate the RMS Current (I_rms) Given: - Power (P) = 600 W - Voltage (V_rms) = 200 V - Power Factor (pf) = 0.6 ...
Promotional Banner

Topper's Solved these Questions

  • ALTERNATING CURRENT

    MODERN PUBLICATION|Exercise PRACTICE PROBLEMS|67 Videos
  • ALTERNATING CURRENT

    MODERN PUBLICATION|Exercise CONCEPTUAL QUESTIONS|25 Videos
  • ATOMS

    MODERN PUBLICATION|Exercise Chapter Practice Test|16 Videos

Similar Questions

Explore conceptually related problems

Power factor of the AC circuit varies between

What is the power factor for the circuit shown ?

A circuit draws a power of 550 watt from a source of 220 volt, 50 Hz . The power factor of the circuit is 0.8 and the current lags in phase behind the potential difference. To make the power factor of the circuit as 1.0, The capacitance should be connected in series with it is

An inductive circuit draws a power 550 W from a 220V-50Hz source. The power factor of the circuit is 0.8. The current in the circuit lags behind the voltage. Show that a capacitor of about (1)/(42 pi) xx10^(-2) F will have to be commected in the circuit to bring its power factor to unity.

In an AC circuit, the power factor

The power factor in the circuit is unity, when the circuit contains an ideal

A circuit draws 330 W from a 110 V , 60 Hz AC line. The power factor is 0.6 and the current lags the voltage. The capacitance of a series capacitor that will result in a power factor of unity is equal to

In a series L.R circuit, power of 400 W is dissipated from a source of 250 V, 50 Hz. The power factor of the circuit is 0.8. In order to bring the power factor to unity, a capactor of value C is added in series to the L and R. Taking the value of C as (n/(3pi))muF , then value of n is ____________

MODERN PUBLICATION-ALTERNATING CURRENT -CHAPTER PRACTICE TEST
  1. A circuit draws a power of 600 W from an AC source of 200 V 50 Hz . Th...

    Text Solution

    |

  2. Write the relation between the rms value and peak value of AC.

    Text Solution

    |

  3. Discuss the phase relationship between current and emf in an circuit c...

    Text Solution

    |

  4. In a series LCR circuit, V(L) = V(C ) != V(R ). What is the value of p...

    Text Solution

    |

  5. Why cannot a transformer be used to step up d.c. voltage ?

    Text Solution

    |

  6. Why do we prefer a choke coil to a rhestat in controlling a.c.?

    Text Solution

    |

  7. Why is electrical energy transmitted at high voltage from a distant po...

    Text Solution

    |

  8. A step down transformer converts transmission line voltage from 2200 V...

    Text Solution

    |

  9. The rms value of current in a 50 Hz AC source is 4 A. What will be the...

    Text Solution

    |

  10. An electric heater is connected to DC and AC sources of equal voltage ...

    Text Solution

    |

  11. Under which condition the current will lag behind the voltage? Explain...

    Text Solution

    |

  12. When an ac source is connected to an ideal capacitor, show that the av...

    Text Solution

    |

  13. Show that in the free oscillations of an LC circuit, the sum of energi...

    Text Solution

    |

  14. Can the voltage drop across the inductor or capacitro in a series LCR ...

    Text Solution

    |

  15. An alternating voltage given by V = 240 sin 314 t is connected across ...

    Text Solution

    |

  16. What is power factor of an LCR circuit ? Explain on the basis of power...

    Text Solution

    |

  17. (a) In a series LCR circuit connected across an AC source of varible f...

    Text Solution

    |