Home
Class 12
PHYSICS
The R.M.S. value of the voltage in an A....

The R.M.S. value of the voltage in an A.C. circuit is 220 V. Its peak value is

A

`220 sqrt2`

B

`2 sqrt(220)`

C

`220// sqrt2`

D

`sqrt2 // 220`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • MODEL TEST PAPER - 8

    KCET PREVIOUS YEAR PAPERS|Exercise PHYSICS|60 Videos

  • MODEL TEST PAPER 10

    KCET PREVIOUS YEAR PAPERS|Exercise PHYSICS|60 Videos

Similar Questions

Explore conceptually related problems

(a) The peak voltage of an ac supply is 300 V. What is the rms voltage? (b) The rms value of current in an ac circuit is 10 A. What is the peak current?

The rms value of current in a 50 Hz AC circuit is 6A . The average value of AC current over a cycle is

Define the rms value of an AC.

A multimeter reads a voltage of a certain A.C. source as 100 V. What is the peak value of voltage of A.C. source ?

Define the peak value of an AC.

In a common emitter amplifier output resistance is 5000 ohm and input resistance is 2000 ohm. If peak value of signal voltage is 10 mV and beta = 50 , then the peak value of output voltage is :

A hot wire ammeter reads 10 A in an ac circuit. The peak value of current is

KCET PREVIOUS YEAR PAPERS-MODEL TEST PAPER 02-PHYSICS
  1. When the key K is pressed at time t = 0 , which one of the following s...

    Text Solution

    |

  2. Critical size is the minimum size of fissionable material for which fi...

    Text Solution

    |

  3. The R.M.S. value of the voltage in an A.C. circuit is 220 V. Its peak ...

    Text Solution

    |

  4. A current of 2 ampere passes through a wire for 8 seconds . Number of ...

    Text Solution

    |

  5. The measurement of voltmeter in the following circuit is

    Text Solution

    |

  6. Light of wavelength 6328 Å incident normally on a slit having a width ...

    Text Solution

    |

  7. White light is used to illuminate the two slits in Young's double slit...

    Text Solution

    |

  8. A diffraction pattern is obtained using a beam of red light. What happ...

    Text Solution

    |

  9. Sound waves cannot be polarised because their

    Text Solution

    |

  10. In a Copper-Iron thermocouple the thermoelectric current flows from

    Text Solution

    |

  11. A ferromagnetic substance when heated beyond the Curie temperature

    Text Solution

    |

  12. Three resistance , each of 1 ohm are joined in parallel . Three such c...

    Text Solution

    |

  13. In L.C.R. circuit , phase difference between voltage and current can b...

    Text Solution

    |

  14. Four resistors R(1) , R(2) , R(3) and R(4) are connected in parallel ...

    Text Solution

    |

  15. In a balanced Wheatstone's network the galvanometer is replaced by ano...

    Text Solution

    |

  16. The insertion of a new metal into a thermocouple

    Text Solution

    |

  17. The electrical resistance in ohms of a certain thermometer varies with...

    Text Solution

    |

  18. A.T.G. gives a deflection of 30^(@) for a certain current at one place...

    Text Solution

    |

  19. In Melde's experiment the number of loop on the string changes from 4 ...

    Text Solution

    |

  20. The tension in a sonometer wire is increased by a factor of four . The...

    Text Solution

    |