Home
Class 12
PHYSICS
The reactance of a coil when used in the...

The reactance of a coil when used in the domestic AC power supply `(220V,50cycl es)` is `50ohm`. The inductance of the coil is nearly

A

`2.2` henry

B

`0.22` henry

C

`1.6` henry

D

`0.16` henry

Text Solution

Verified by Experts

The correct Answer is:
D

`X_(L) =2pivLimplies L=(X_(L))/(2piv)=50/(2xx3.14xx50)=0.6H`
Promotional Banner

Topper's Solved these Questions

  • ALTERNATING CURRENT

    A2Z|Exercise Different Ac Circuits|30 Videos
  • ALTERNATING CURRENT

    A2Z|Exercise Power In Ac Circuits|21 Videos
  • ALTERNATING CURRENT

    A2Z|Exercise Section D - Chapter End Test|30 Videos
  • ATOMIC PHYSICS

    A2Z|Exercise Section D - Chapter End Test|30 Videos

Similar Questions

Explore conceptually related problems

The reactance of a coil when used in the domestic AC power supply (220V,50cycl es) is 100ohm . The selfinductance of the coil is nearly

Inductance of a coil is 5 mH is connected to AC source of 220 V, 50 Hz. The ratio of AC to DC resistance of the coil is

In a circuit, the reactance of a coil is 20 Omega . If the inductance of the coil is 50mH then angular frequency of the current will be –

A coil of 20Omega resistance and 0.1 henry inductance is connected to 220 V volt 50 cycle mains .What is the impedance of the coil ? What currect does it draw Does the current lead or lag and by how much?

A varying current in a coil change from 10A to 0A in 0.5 sec . If the average emf induced in the coil is 220V , the self inductance of the coil is

A coil is series with a 20muF capacitor across a 230V, 50Hz supply. The current taken by the circuit is 8A and the power consumed is 200W. Calculate the inductance of the coil if the current in the circuit is (a) leading (b) lagging

A resistance of 40 ohms and an inductance of 95.5 millihenry are connected in series in a 50 cycle/sec AC circuit. The impedence of this combination is very nearly

When current in a coil changes from 5 A to 2 A in 0.1 s, average voltage of 50 V is produced. The self - inductance of the coil is :

A coil having a resistance of 50.0 Omega and an inductance of 0.5 H is connected to an AC source of 110 , v, 50Hz . The impedance of the coil is (appoximately)

A2Z-ALTERNATING CURRENT-Connected With Ac
  1. The frequency for which a 5mu F capacitor has a reactance of (1)/(100...

    Text Solution

    |

  2. The value of the current through an inductance of 1H and of negligible...

    Text Solution

    |

  3. The reactance of a coil when used in the domestic AC power supply (220...

    Text Solution

    |

  4. The figure represents the voltage applied across a pure inductor. The ...

    Text Solution

    |

  5. The graphs given below depict the dependence of two reactive impedance...

    Text Solution

    |

  6. Identify the graph which correctly represents the variation of capacit...

    Text Solution

    |

  7. A resistance of 40 ohms and an inductance of 95.5 millihenry are conne...

    Text Solution

    |

  8. For high frequency, a capacitor offers

    Text Solution

    |

  9. Reactance of an inductor of 1/(pi) henry at 50Hz frequency is

    Text Solution

    |

  10. The resistance of a coil for DC is in ohms. In AC, the resistance

    Text Solution

    |

  11. An alternating current of frequency 'f' is flowing in a circuit contai...

    Text Solution

    |

  12. An inductance of 1mH a condenser of 0.5 henry and capacitance of 10xx1...

    Text Solution

    |

  13. If resistance of 100Omega , inductance of 0.5 henry and capacitor of 1...

    Text Solution

    |

  14. An inductive circuit a resistance of 10ohm and an inductance of 2.0 h...

    Text Solution

    |

  15. An inductive circuit a resistance of 10ohm and an inductance of 2.0 h...

    Text Solution

    |

  16. Same current is flowing in two alternating circuits. The first circuit...

    Text Solution

    |

  17. In a series circuit R=300Omega, L=0.9H, C=2.0 muF and omega=1000rad//s...

    Text Solution

    |

  18. In a L-R circuit, the value of L is (0.4/(pi)) henry and the value of ...

    Text Solution

    |

  19. An e.m.f. E=4cos(1000t)volt is applied to an LR circuit of inductance ...

    Text Solution

    |

  20. In an AC circuit, a resistance of Rohm is connected is series with an ...

    Text Solution

    |