Home
Class 12
PHYSICS
If an alternating voltage is represented...

If an alternating voltage is represented as` E = 141 sin (628t)`, then
(1) the rms voltage is `141V`
(2) the rms voltage is `100V`
(3) the frequency is `50 Hz`
(4) the frequency is `100 Hz`

A

1, 2 and 3 are correct

B

1 and 2 are correct

C

2 and 4 are correct

D

1 and 3 are correct

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

If an alternating voltage is represented as E = 141 sin (628t), then the rms value of the voltage and the frequency are respectively.

If an alternating voltage is represented as E=141 sin (628 t) , then the rms value of the voltage and the frequency are respectively

If an alternating voltage is represented as v = 300 sin 600 t then the arms value of the voltage and the frequency are respectively :

Alternating voltage (V) is represented by the equation whrere V_(m) is the peak voltage

An alternating voltage is represented by V=80 sin(100 pi t)cos(100 pi t) volt, What is the peak voltage?

An alternating voltage is given by V=V_(0) sin (omega t-(pi)/3) When will be the voltage maximum for the first time?

A alternating voltage varies with time (t) as V=100sin(50pit) . The rms voltage and the frequency respectively, are

The peak voltage of an ac supply is 440 V, then its rms voltage is

An alternating voltage is given by E = 100 sin( omega +(pi)/(6))V . The voltage will be maximum for the first time when is [T = periodic time)

An AC voltage is given as e=e_(1) sin omega t . Find the RMS value of this voltage.

DISHA-ALTERNATING CURRENT-Physics
  1. An alternating current of frequency 'f' is flowing in a circuit contai...

    Text Solution

    |

  2. An alternating voltage is connected in series with a resistance R and ...

    Text Solution

    |

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

    Text Solution

    |

  4. A 20volts AC is applied to a circuit consisting of a resistance and a...

    Text Solution

    |

  5. An alternating voltage E=200sqrt(2)sin(100t) is connected to a 1 micro...

    Text Solution

    |

  6. A resistor and a capacitor are connected in series with an a.c. source...

    Text Solution

    |

  7. A 120 volt AC source is connected across a pure inductor of inductance...

    Text Solution

    |

  8. The instantaneous value of current in an A.C. circuit is I=2 sin (100 ...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  11. One 10V, 60W bulb is to be connected to 100V line. The required induct...

    Text Solution

    |

  12. A resistance of 300Omega and an inductance of 1/(pi) henry are connect...

    Text Solution

    |

  13. If an alternating voltage is represented as E = 141 sin (628t), then ...

    Text Solution

    |

  14. The r.m.s. value of an ac of 50 Hz is 10 A. (1) The time taken by the ...

    Text Solution

    |

  15. If the voltage in an ac circuit is reparesented by the equation V=220 ...

    Text Solution

    |

  16. If the voltage in an ac circuit is reparesented by the equation V=220 ...

    Text Solution

    |

  17. If the voltage in an ac circuit is represented by the equation. V = ...

    Text Solution

    |

  18. Assertion: The alternating current lags behined the e.m.f. by a phase ...

    Text Solution

    |

  19. Statement 1: An alternating current shown magnetic effect. Statemen...

    Text Solution

    |

  20. Assertion: A capacitor of suitable capacitance can be used in an AC ci...

    Text Solution

    |