Home
Class 12
PHYSICS
(a) The peak voltag3e of an a.c. supply ...

(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 ?

Text Solution

Verified by Experts

(a) Peak voltage of the ac supply, `v_(0)=300V`
Rms voltage is given as:
`V=V_(0))/sqrt(2)`
`(300)/sqrt(2)=212.1V`
(b) Therms value of current is given as:
I=10A
`I_(0)=sqrt(2)I`
`=10sqrt(2)=14.1A `
Promotional Banner

Topper's Solved these Questions

  • ALTERNATING CURRENT

    NCERT ENGLISH|Exercise Exercise|26 Videos

  • ATOMS

    NCERT ENGLISH|Exercise Exercise|17 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 10A. What is the peak current?

The rms value of current in an ac circuit is 25 A, then peak current is

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

The peak value of an alternating current is 10. A. Find its rms value

Define the term .r.m.s.value of the current. How is it related to the peak value ?

In an AC circuit, the rms value of the current I_("rms") is related to the peak current I_(0) as

A 60 mu F capacitor is connected to a 110 V, 60 Hz a.c. supply Determine the r.m.s value of current in the circuit.

A 60 mu F capacitor is connected to a 110 V, 60 Hz a.c. supply Determine the r.m.s value of current in the circuit.

A 30 mu F capacitor is connected to a 150 V, 60 Hz ac supply. The rms value of current in the circuit is

A 44 mH inductor is connected to 220 V, 50 Hz ac supply. The rms value of the current in the circuit is

NCERT ENGLISH-ALTERNATING CURRENT -Exercise
  1. A 100 Omega resistor is connected to a 220 V, 50 Hz ac supply. (a) W...

    Text Solution

    |

  2. (a) The peak voltag3e of an a.c. supply is 300 V. What is its r.m.s vo...

    Text Solution

    |

  3. A 44 mH inductor is connected to 220 V, 50 Hz a.c. supply. Determine r...

    Text Solution

    |

  4. A 60 mu F capacitor is connected to a 110 V, 60 Hz a.c. supply Determi...

    Text Solution

    |

  5. In Exercises 7.3 and 7.4, what is the net power absorbed by each circu...

    Text Solution

    |

  6. Obtain the resonant frequency (omega(r)) of a series LCR circuit withL...

    Text Solution

    |

  7. A charged 30 mu F capacitor is connected to a 27 mH inductor. What is ...

    Text Solution

    |

  8. Suppose the initial charge on the capactor in the above question is 6 ...

    Text Solution

    |

  9. A series LCR circuit with R = 20 Omega, L = 1.5 H and C = 35 mu F is c...

    Text Solution

    |

  10. A radio can tune over the frequency range of a portion of MW broadcast...

    Text Solution

    |

  11. A series LCR circuit connected to a variable frequency 230 V source ha...

    Text Solution

    |

  12. An LC circuit contains a 20 mH inductor and a 50 mu F capacitor with a...

    Text Solution

    |

  13. A coil of inductance 0.50H and resistance 100 Omega is connected to a ...

    Text Solution

    |

  14. Obtain the answers to (a) and (b) Q.13, if the circuit is connected to...

    Text Solution

    |

  15. A 100muF capacitor in series with a 40 Omega resistor is connected to ...

    Text Solution

    |

  16. Obtain the answers to (a) and (b) in Q .15, if the circuit is connecte...

    Text Solution

    |

  17. Keeping the source of frequency equal to the resonating frequency of t...

    Text Solution

    |

  18. A circuit containing an 80mH inductor and a 60muF capacitor in series ...

    Text Solution

    |

  19. Suppose the circuit in Exercise 7.18 has a resistance of 15 Omega Obta...

    Text Solution

    |

  20. A series LCR circuit with L= 0.12H, C=480 nF, and R=23 Omega is connec...

    Text Solution

    |