Home
Class 11
PHYSICS
A coil of 200 Omega resistance and 1.0...

A coil of 200 `Omega` resistance and `1.0` H inductance is connected to an ac source of frequency `200//2pi` Hz .Phase angle between potential and current will be :

A

`30^(@)`

B

`90^(@)`

C

`45^(@)`

D

`0^(@)`

Text Solution

Verified by Experts

The correct Answer is:
C

`tan phi=(x_(L))/R=(L omega)/R=1`
`phi=45^(@)`
Promotional Banner

Topper's Solved these Questions

  • ATOMIC PHYSICS

    RESONANCE ENGLISH|Exercise Exercise|32 Videos

Similar Questions

Explore conceptually related problems

A coil of 200Omega resistance and 1.0H inductance is conneted to an AC source of frequency 200//2pi Hz . Phase angle between potential and current will be

A coil of resistance 300 Omega and inductance 1.0 henry is connected across an voltages source of frequency 300//2pi Hz . The phase difference between the voltage and current in the circuit is

A coil of resistance 200 ohms and self inductance 1.0 henry has been connected in series to an a.c. source of frequency 200/pi Hz . The phase difference between voltage and current is

The coefficient of induction of a choke coil is 0.1 H and resistance is 12 Omega . If it is connected to an alternating current source of frequency 60 Hz , then power factor will be

A choke coil of resistance R and inductance is connected to an ac. source of frequency f and peak voltage V If angular frequency will increase then, the average power dissipated in the choke

To a circuit of 1Ω resistance and 0.01 henry inductance is connected a 200 Volt line of frequency 50 cycles/ second. Calculate the reactance, the impedance and the current in the circuit and also the lag in phase between alternating voltage and current

A 200 Omega resistor and 1H inductor are joined in series with an ac source of emf 10 sqrt(2) sin (200t)V . Calculate the phases difference between emf and current.

A capacitor, a resistor and a 40 mH inductor are connected in series to an a.c. source of frequency 60 Hz. Calculate the capacitance of the capacitor,if current is in phase with the voltage.

A resistance of 300Omega and an inductance of 1/(pi) henry are connected in series to an AC voltage of 20 "volts" and 200Hz frequency. The phase angle between the voltage and current is

A 12 Omega resistor and a 0.21 H inductor are connected in series to an a.c. source operating at V, 50 cycle second. The phase angle between current and source vottage is

RESONANCE ENGLISH-ALTERNATING CURRENT-Exercise
  1. In L-C-R series circuit, an alternating emf e and current i are given ...

    Text Solution

    |

  2. In the circuit shown, the AC source has voltage V = 20cos(omegat)volt ...

    Text Solution

    |

  3. A coil of 200 Omega resistance and 1.0 H inductance is connected to ...

    Text Solution

    |

  4. In series LCR circuit, the voltages across R, L and C are shown in the...

    Text Solution

    |

  5. When 100V. DC is applied across a solenoid a current of 1A flows in it...

    Text Solution

    |

  6. The average power dissipated in a pure inductor of inductance L when a...

    Text Solution

    |

  7. The power factor of LCR circuit at resonance is :

    Text Solution

    |

  8. In an ac circuit the current is given by i=0.5 sin (314 t + 60^@) mill...

    Text Solution

    |

  9. In an electric circuit applied ac emf is e=20 sin 300t volt and the cu...

    Text Solution

    |

  10. The time required for a 50 Hz alternating current to increase from 0 t...

    Text Solution

    |

  11. A steady dc current of 2.83A is flowing in a resistance wire. The rms ...

    Text Solution

    |

  12. The variation of the instantaneous current (I) and the instantaneous e...

    Text Solution

    |

  13. In a series LCR circuit containing an AC voltage source of frequency o...

    Text Solution

    |

  14. An alternating emf is applied across a parallel combination of a resis...

    Text Solution

    |

  15. The value of current at half power points is - A. sqrt(2)I(m) B. I(m)...

    Text Solution

    |

  16. The power factor of a good choke coil is

    Text Solution

    |

  17. Which one has the dimensions different from the remaining three A. po...

    Text Solution

    |

  18. In the figure shown, a current of 2 amperes flows in the circuit. The ...

    Text Solution

    |

  19. Assertion (A) : The electrostatic energy stored in capacitor plus magn...

    Text Solution

    |