Home
Class 12
PHYSICS
The maximum value of AC voltage in a cir...

The maximum value of `AC` voltage in a circuit is `70V`. Its `r.m.s.` value is

A

`70.7 V`

B

`100 V`

C

`500V`

D

`707 V`

Text Solution

Verified by Experts

The correct Answer is:
C

`E_(rms)=(E_(0))/(sqrt(2))=707/1.41=500 V`
Promotional Banner

Topper's Solved these Questions

  • ALTERNATING CURRENT

    A2Z|Exercise AIIMS Questions|26 Videos
  • ATOMIC PHYSICS

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

Similar Questions

Explore conceptually related problems

The maximum value of a.c. voltage in a circuit is 707 V . Its rms value is

If E_(0) represents the peak value of the voltage in an ac circuit, the r.m.s. value of the voltage will be

In an AC circuit the maximum value of voltage is 423 volt, Its effective voltage is :-

The maximum voltage in DC circuit is 282 V. the effective voltage in AC circuit will be

(a) The peak voltag3e of an a.c. supply is 300 V. What is its r.m.s voltages? (b) The r.m.s value of current in an ac circuit is 10 A. What is the peak current ?

What is the maximum value of an ac voltage whose rms value is 220 V?

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

If the value of potential in an ac , circuit is 10 V , then the peak value of potential is

A2Z-ALTERNATING CURRENT-Section D - Chapter End Test
  1. An AC source is rated at 220V, 50 Hz. The time taken for voltage to ch...

    Text Solution

    |

  2. If the value of potential in an ac, circuit is 10 V, then the peak val...

    Text Solution

    |

  3. The maximum value of AC voltage in a circuit is 70V. Its r.m.s. value ...

    Text Solution

    |

  4. If instantaneous current is given by i=4 cos(omega t + varphi) amperes...

    Text Solution

    |

  5. In an AC circuit, peak value of voltage is 423 volts. Its effective vo...

    Text Solution

    |

  6. The power factor of an AC circuit having resistance (R) and inductance...

    Text Solution

    |

  7. An inductor of inductance L and ressistor of resistance R are joined i...

    Text Solution

    |

  8. Alternating current can not be measured by D.C. Ammeter because

    Text Solution

    |

  9. In a LCR circuit capacitance is changed from C to 2C. For the resonant...

    Text Solution

    |

  10. In an LCR series a.c. Circuit the voltage across each of hte component...

    Text Solution

    |

  11. For the circuit shown in the figure, the current through the inductor ...

    Text Solution

    |

  12. In a series LCR circuit, the voltage across the resistance, capacitanc...

    Text Solution

    |

  13. An ideal choke takes a current of 10 A when connected to an ac supply ...

    Text Solution

    |

  14. A direct current of 5 amp is superimposed on an alternating current I=...

    Text Solution

    |

  15. A group of electric lamps having a total power rating of 1000 watt is ...

    Text Solution

    |

  16. In a LCR circuit having L=8.0 Henry, C=0.5 mu F and R=100 ohm in serie...

    Text Solution

    |

  17. An alternating current source of frequency 100 Hz is joined to a combi...

    Text Solution

    |

  18. A 10 ohm resistance, 5 mH coil and 10mu F capacitor are joined in seri...

    Text Solution

    |

  19. A resistor R, an inductor L and a capacitor C are connected in series ...

    Text Solution

    |

  20. If power factor is 1//2 in a series RL circuit, R=100 Omega. AC mains ...

    Text Solution

    |