Home
Class 12
PHYSICS
Inductance (L), capacitance (C) and resi...

Inductance (L), capacitance (C) and resistance (R) are constained in a box. When 250 V DC is applied to the terminals of the box, a current of 1.0A floes in the circuit. When an AC source of `250V_(rms)` at `2250 rad sec^(-1)` is connected, a current of `1.25 A_(rms)` flows. It is observed that the current rises with frequency and becomes maximum at `4500 rad sec^(-1)`. find the values of L,C and R. draw the circuit diagram.

Promotional Banner

Topper's Solved these Questions

  • AC CIRCUITS AND ELECTRIC CIRCUITS

    SL ARORA|Exercise problem|57 Videos

  • ATOMS, NUCLEI AND MOLECULES

    SL ARORA|Exercise Problems For Self Practice|87 Videos

Similar Questions

Explore conceptually related problems

A current of 4 A flows in a coil when connected to a 12 V dc source. If the same coil is connected to a 12 V, 50 rad s^(-1) ac source, a current of 2.4 A flows of the coil in the circuit. The inductance of the coil is

When 100 V dc is applied across a coil, a current of 1A flows through it and when 100 V ac of 50 Hz is applied to the same coil, only 0.5 flows The inductance of coil is

When 100 V dc is applied across a coil, a current of 1A flows through it and when 100 V ac of 50 Hz is applied to the same coil, only 0.5 flows The resistance is

A current of 4 A flows in a coil when connected to a 12 V dc source. If the same coil is connected to a 12 V, 50 rad s^(-1) ac source, a current of 2.4 A flows of the coil in the circuit. The power developed in the circuit of a 2500 (mu)F capacitor that is connected in series with the coil is

A circuit containing an inductance and a resistance connected in series, has an AC source of 200V, 50Hz connected across it. An AC current of 10A rms flows through th ecircuit and the power loss is measured to be 1W.

When 100 V DC is applied across a solenoid, a steady current of 1 A flows in it. when 100V AC is applied across the same solenoid, the current drops to 0.5 A. If the frequency of the Ad source is 150// sqrt3pi Hz , the impedance and inductance of the solenoid are

The value of the current through an inductance of 1H and of negligible resistance, when connected through an AC source of 200V and 50Hz is

A pure inductor of 25.0 mH is connected to a source of 220 V. Find the inductive reactance and rms current in the circuit if the frequency of the source is 50 Hz.

SL ARORA-AC CIRCUITS AND ELECTRIC CIRCUITS-problem
  1. A current of 4 A flows in a coil when connected to a 12 V dc source. I...

    Text Solution

    |

  2. An LCR circuit has L = 10 mH. R = 3 ohm and C = 1 mu F connected in se...

    Text Solution

    |

  3. Inductance (L), capacitance (C) and resistance (R) are constained in a...

    Text Solution

    |

  4. A series LCR- circuit containing a resistance of 120 Omega has angular...

    Text Solution

    |

  5. An LC- circuit (inductance 0.01 H and capacitance 1 muF) is connected ...

    Text Solution

    |

  6. An a.c. source is connected to two circuit as shown in fig. 14.10. Obt...

    Text Solution

    |

  7. The current in a coil of self-inductance 2.0 H is increasing according...

    Text Solution

    |

  8. Two coil have self-inductances L(1)=8 mH and L(2)=2 mH. In both of the...

    Text Solution

    |

  9. Keeping the source of frequency equal to the resonating frequency of t...

    Text Solution

    |

  10. What will be the instantaneous voltage for an a.c. supply of 230 V and...

    Text Solution

    |

  11. The instantaneous emf an a.c. source is given by epsi=300 sin 314 t. W...

    Text Solution

    |

  12. The emf an source is given by the expression epsi=300 sin 314 t. Write...

    Text Solution

    |

  13. An alternative current in amperes us given by I=50 sin (400 pi t+phi)....

    Text Solution

    |

  14. An alternating emf of peak value 350 V is applied across an a.c. ammet...

    Text Solution

    |

  15. The effective value of current in a 50 cycle a.c. circuit is 5 A. what...

    Text Solution

    |

  16. The peak value of an alternating current of frequency 50 Hz is 14.14 A...

    Text Solution

    |

  17. A 100 Omega iron is connected to a 220 V, 50 cycles wall plug. What is...

    Text Solution

    |

  18. The equation of a.c. in a circuit is I=50 sin 100 pi t. Find (i) frequ...

    Text Solution

    |

  19. A resistance of 500 Omega is connected to a source of emf, epsi=10 sin...

    Text Solution

    |

  20. What is the inductive reactance of a coil if current through it is 800...

    Text Solution

    |