Home
Class 12
PHYSICS
An ac source of frequency 50 Hz is conn...

An ac source of frequency 50 Hz is connected with a resistance `(R=36Omega)` and L of 0.12 H in series. What is the phase different between current and voltage?

Text Solution

Verified by Experts

IF `theta` be the phase difference, then
`tantheta=(omegaL)/R`
or,`theta=tan^-1""(omegaL)/R=tan^-1"(314times0.12)/36=tan^-1(1.047)=46.3^@`
[here `omega=2pitimes50=2times3.14times50=314 Hz`]
So, phase difference =`46.3^@`.
Promotional Banner

Topper's Solved these Questions

  • ALTERNATING CURRENT

    CHHAYA PUBLICATION|Exercise HIGH ORDER THINKING SKILL (HOTS) QUESTIONS|13 Videos

  • ALTERNATING CURRENT

    CHHAYA PUBLICATION|Exercise NCERT TEXTBOOK QUESTIONS WITH ANSWER HINT|33 Videos

  • CHHAYA PUBLICATION|Exercise EXAMPLE|1 Videos

  • ATOM

    CHHAYA PUBLICATION|Exercise CBSE SCANNER|18 Videos

Similar Questions

Explore conceptually related problems

In L.C.R. series a.c. circuit, the phase angle between current and voltage is—

220-V,50 Hz a.c. source is supplied to a circuit which have a pure resistance. What will be the phase difference between the current and supply voltage?

A 220V, 50Hz ac source is connected to an inductance of 0.2H and a resistance of 20Omega in series . What is the current in the circuit?

Resistance , inductive reactance and capacitative reactance of an LCR series ac circuit are 30Omega , 60Omega and 20Omega respectively. What is the phase difference between the ac-voltage and current in the circuit?

In an alternating series LCR circuit ,what is the phase difference between the voltage drop across L and C?

An ac source is connected in series with an inductor of 5H and a resistor of 1000Omega . The rms value of voltage of the source is 100 V and the frequency of the source is 50cps. What is the rms value of the current in the circuit? What is the phase difference of the voltage and the current in the circuit? What is the power dissipated in the circuit?

A 200muF capacitor is in series with a 50Omega resistor and is connected to a 220 V, 50 Hz ac source (i) What is the maximum current in the circuit (ii) What is the difference in time when the current and the voltage attain maximum values?

An ac voltage of 100V,50Hz is connected across a 20Omega resistor and 2mH inductor in series. Calculate (i) impedance of the circuit (ii) rms current in the circuit.

An emf of V= V_0sin omegat is applied on a series LCR circuit. IF there is no phase difference between the voltage and current then,

If three resistances connected in series,are related as R_1 gt R_2 gt R_3 then what is the relation between the currents flowing through them?

CHHAYA PUBLICATION-ALTERNATING CURRENT -CBSE SCANNER
  1. An ac source of frequency 50 Hz is connected with a resistance (R=36O...

    Text Solution

    |

  2. Mention the two characteristic properties of the material suditable fo...

    Text Solution

    |

  3. State the underlying principle of a transformer. How is the large scal...

    Text Solution

    |

  4. An alternating voltage given by V=140sin314t is connected across a pur...

    Text Solution

    |

  5. An alternating voltage given by V=140sin314t is connected across a pur...

    Text Solution

    |

  6. In an A.C. circuit, the potential difference across an inductance and ...

    Text Solution

    |

  7. For a given ac i=imsinomegat, show that the average power dissipated i...

    Text Solution

    |

  8. A light bulb is rated at 100 W for a 220V ac supply. Calculate the res...

    Text Solution

    |

  9. Why is the use of ac voltage preferred over dc voltage? Given two reas...

    Text Solution

    |

  10. A voltage V0sinomegat is applied to a series LCR circuit, Derive the e...

    Text Solution

    |

  11. Define the term 'quality factor' of resonance in series LCR circuit. W...

    Text Solution

    |

  12. Show that the average power consumed in an inductor L connected to an ...

    Text Solution

    |

  13. In a series LR circuit, XL=R and the power factor of the circuit is P1...

    Text Solution

    |

  14. State the principle of an ac generator.

    Text Solution

    |

  15. Explain briefly, with the help of labelled diagram, and obtain the exp...

    Text Solution

    |

  16. Draw a schematic diagram showing the nature of the alternating emf gen...

    Text Solution

    |

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

    Text Solution

    |

  18. A bulb is connected in series with a variable capacitor and an ac sour...

    Text Solution

    |

  19. In a series LCR circuit connected to an ac source of voltage v=vmsinom...

    Text Solution

    |

  20. A derive 'X' is connected to an ac source V=V0sinomegat.The variation ...

    Text Solution

    |

  21. A derive 'X' is connected to an ac source V=V0sinomegat.The variation ...

    Text Solution

    |