Home
Class 12
PHYSICS
In an AC circuit, V and I are given by V...

In an `AC` circuit, `V` and `I` are given by `V=100sin(100t)volts, I=100sin(100t+(pi)/3)mA`. The power dissipated in circuit is

A

1.5 W

B

2.5 W

C

2 W

D

3 W

Text Solution

Verified by Experts

The correct Answer is:
B

`overline(P)=(e_(0)I_(0))/(2)"cos"(pi)/(3)=2.5W`
Promotional Banner

Topper's Solved these Questions

  • ELASTICITY

    NIKITA PUBLICATION|Exercise MCQ|314 Videos
  • ELECTRONS AND PHOTONS

    NIKITA PUBLICATION|Exercise MCQs|162 Videos

Similar Questions

Explore conceptually related problems

In an A.C. circuit , e and I are given by, e=100 sin (100t) volt, I=100sin(100t+(pi)/(3))mA . The power dissipated in circuit is

In an ac circuit,V and | are given by V=100sin(100t)" volts ,I=100sin(100t+(pi)/(3))mA .The power dissipated in circuit is

In an a c.circuit V and 1 are given by v=200sin(100t) volts 1=50sin(100t+pi/3)mA The power dissipated in the circuit is

In an AC circuit V and I are given by V = 100 sin 100t V and I = 100 sin (100t + pi//3) mA. The power dissipated in the circuit is

In an A.C. circuit, V and I are given by V = 100 sin ( 100t) volt. I = 100 sin ( 100 t + pi //4) mA The power dissipated in the circuit is

In an circuit, V and I are given by V=150sin(150t) V and I =150sin(150t+(pi)/(3))A . The power dissipated in the circuit is

In an a.c circuit, V & I are given by V = 100 sin (100 t) volt. I = 100 sin (100 t + (pi)/(2)) mA The power dissipated in the circuit is:

In an a.c. circuit V and I are given by V=50 sin50t volt and I = 100 sin (50t + pi//3) mA. The power dissipated in the circuit

In an A.C. circuit, E=100 sin (500 t) volt and I=1000 sin(500 t +(pi)/3) mA . The power dissipated in the circuit is

NIKITA PUBLICATION-ELECTROMAGNETIC INDUCTION-MCQs
  1. A coil of 40 Omega resistance has 100 turns and radius 6 mm us connect...

    Text Solution

    |

  2. The mutual inductance between a primary and secondary circuit is 0.5H....

    Text Solution

    |

  3. In an AC circuit, V and I are given by V=100sin(100t)volts, I=100sin(1...

    Text Solution

    |

  4. A pure resistive circuit element X when connected to an ac supply of p...

    Text Solution

    |

  5. In L-R circit, the A.C. source has voltage 220V. If potential differen...

    Text Solution

    |

  6. An AC source is 120 V-60 Hz. The value of voltage after 1/720 s from...

    Text Solution

    |

  7. A coil having an inductance of 1//pi henry is connected in series with...

    Text Solution

    |

  8. A resistor an inductor and a capacitor are connected in series to an a...

    Text Solution

    |

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

    Text Solution

    |

  10. When 100 V DC is applied across a solenoid, a current of 1.0 A flows i...

    Text Solution

    |

  11. In an LCR series circuit the capacitance is changed from C to 4C For t...

    Text Solution

    |

  12. The reactance of an inductor at 50 Hz is 100Omega. If the frequency is...

    Text Solution

    |

  13. An e.m.f. E=4cos(1000t)volt is applied to an LR circuit of inductance ...

    Text Solution

    |

  14. The magnetic flux associated with a coil changes from zero to 5xx10^(-...

    Text Solution

    |

  15. A coil having 50 turns and an area of 800 cm^(2) is held with its plan...

    Text Solution

    |

  16. The horizontal telegraph wire 100 m long, oriented along magnetic east...

    Text Solution

    |

  17. A coil of effective area 4m^(2) is placed with its plane perpendicular...

    Text Solution

    |

  18. A coil having an area of 0.4 m^(2) and 100 turns is kept perpendicular...

    Text Solution

    |

  19. A square wire loop with sides 0.5 m is placed with its plane perpendic...

    Text Solution

    |

  20. A meter gauge train runs northwards with a constant speed of 22 m/s on...

    Text Solution

    |