Home
Class 12
PHYSICS
In an AC circuit, the impedance is sqrt3...

In an `AC` circuit, the impedance is `sqrt3` times the reactance, then the phase angle is

A

`60^@`

B

`30^@`

C

zero

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
D
`sinphi=X/Z=1/sqrt3`
`:. phi=sin^(-1)((1)/(sqrt(3)))`
.
Promotional Banner

Topper's Solved these Questions

  • ALTERNATING CURRENT

    DC PANDEY|Exercise Level - 1 Subjective|6 Videos

  • ALTERNATING CURRENT

    DC PANDEY|Exercise Level- 2 Single Correct|18 Videos

  • ALTERNATING CURRENT

    DC PANDEY|Exercise Level 1 Assertion-Reason|11 Videos

  • ATOMS

    DC PANDEY|Exercise MEDICAL ENTRANCES GALLERY|42 Videos

Similar Questions

Explore conceptually related problems

In an AC circuit the reactance of a coil is sqrt(3) times its resistance, the phase difference between the voltage across the current through the coil will be

Assertion : In series LCR resonance circuit, the impedance is equal to the ohmic resistance. Reason : At resonance, the inductive reactance exceeds the capacitive reactance.

Assertion : In series LCR resonance circuit, the impedance is equal to the ohmic resistance. Reason : At resonance, the inductive reactance exceeds the capacitive reactance.

In an A.C. circuit the impedance is Z = 100 angle 30^(@) Omega , then the resistance of the circuit in ohm will be

A series LCR circuit, has equal resistance capacitive reactance. What is the phase angle between voltage across generator and resistor ?

An AC source of variable frequency is applied across a series L-C-R circuit. At a requency double the resonace frequency. The impedance is sqrt(10) times the minimum impedance. . The inductive reactance is

If for above circuit the capacitive reactance is two times of inductive Reactance, and resistance R is equal to inductance Reactance then power factor of circuit is .

Ratio of impedence to capactive reactance has

DC PANDEY-ALTERNATING CURRENT-Level - 1 Objective
  1. The current and voltage functions in an AC circuit are i=100 sin 100...

    Text Solution

    |

  2. A capacitor becomes a perfect insulator is

    Text Solution

    |

  3. For an alternating voltave V=10 cos 100 pit volt, the instantenous vol...

    Text Solution

    |

  4. In a purely resistive AS circuit,

    Text Solution

    |

  5. Identify the graph which correctly reperesents the variation of capaci...

    Text Solution

    |

  6. In an AC circuit, the impedance is sqrt3 times the reactance, then the...

    Text Solution

    |

  7. Voltage applied to an AC circuit and current flowing in it is given by...

    Text Solution

    |

  8. A current of 4A flows in a coil when connected to a 12V DC source. If ...

    Text Solution

    |

  9. In the circuit shown in figureure, the reading of the AC ammeter is ...

    Text Solution

    |

  10. An AC voltage is applied acrss a series combination of L and R. If the...

    Text Solution

    |

  11. For wattless power is an AC circuit, the phase angle between the curre...

    Text Solution

    |

  12. The correct variation of resistance R with frequency f is given by

    Text Solution

    |

  13. If L and R be the inductance and resistance of the choke coil, then in...

    Text Solution

    |

  14. When an AC signal of frequency 1 kHz is applied across a coil of resis...

    Text Solution

    |

  15. The frequency of an alternating current is 50 Hz. The minimum time tak...

    Text Solution

    |

  16. The current and voltage functions in an AC circuit are i=100 sin 100...

    Text Solution

    |

  17. In the AC network shown in figureure the rms current flowing through t...

    Text Solution

    |

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

    Text Solution

    |

  19. A steady current of magnitude I and an AC current of peak value I are ...

    Text Solution

    |

  20. A 50 Hz AC source of 20 V is connected across R and C as shown in fig...

    Text Solution

    |