Home
Class 12
PHYSICS
In any AC circuit the emf (e) and the cu...

In any `AC` circuit the emf `(e)` and the current `(i)` at any instant are given respectively by `e= E_(0)sin omega t`
`i=I_(0) sin (omegat-phi)`
The average power in the circuit over one cycle of `AC` is

A

`(E_(0)I_(0))/(2)`

B

`(E_(0)I_(0))/(2) sinphi`

C

`(E_(0)I_(0))/(2)cos phi`

D

`E_(0)I_(0)`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • PRACTICE SET 19

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise Paper 1 (Physics & Chemistry)|50 Videos
  • PRACTICE SET 21

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise PAPER 1 (PHYSICS & CHEMISTRY)|50 Videos

Similar Questions

Explore conceptually related problems

In a series L.C.R. circuit alternating emf (v) and current (i) are given by the equation v=v_(0) sin omega t , i=i_(0)sin(omega t+(pi)/(3)) The average power dissipated in the circuit over a cycle of AC is

In a series LCR circuit, an alternating emf (V) and current (I) are given by the equation V =V_0sinomegat,I=I_0sin(omegat+pi/3) The average power dissipated in the circuit over a cycle of AC is

For an ac circuit V=15 sin omega t and I=20 cos omega t the average power consumed in this circuit is

The voltage E and the current I in an instrument are represented by the equations: E=2cos omegatV I=2sin omegat A The average power dissipated in the instrument will be

The emf and current in a circuit are such that E = E_(0) sin omega t and I - I_(0) sin (omega t - theta) . This AC circuit contains

For an AC circuit V=15sin omegat and I=20cos omegat the average power consumed in this circuit is

MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-PRACTICE SET 20-PAPER 1 (Physics & Chemistry)
  1. Water from a tap emerges vertically downwards with initial velocity 4m...

    Text Solution

    |

  2. A long solenoid has 500 turns. When a current of 2A is passed through ...

    Text Solution

    |

  3. In any AC circuit the emf (e) and the current (i) at any instant are g...

    Text Solution

    |

  4. A circular disc of radius 0.2 m is placed in a uniform magnetic fied...

    Text Solution

    |

  5. A transformer is used to light a 140 W, 24 V lamp from 240 V AC mains....

    Text Solution

    |

  6. The groud state energy of hydrogen atom is -13.6 eV. When its electron...

    Text Solution

    |

  7. If the surface tension of water is 0.06 Nm, then the capillary rise in...

    Text Solution

    |

  8. The circuit is equivalent to

    Text Solution

    |

  9. The ionisation potential of hydrogen atom is 13.6 volt. The energy req...

    Text Solution

    |

  10. If the radius of the earth were to shrink by 1% its mass remaining the...

    Text Solution

    |

  11. Two particles of mass m and M are initially at rest and infinitely sep...

    Text Solution

    |

  12. A round uniform body of radius R, mass M and moment of inertia 'I' rol...

    Text Solution

    |

  13. A particle under the action of a force has a period of 3s and under th...

    Text Solution

    |

  14. If mass is measured in unit of alpha kg, length in beta m and time in ...

    Text Solution

    |

  15. The phase space diagram for harmonic motion is a circle centered at th...

    Text Solution

    |

  16. Capacity of a capacitor is 48mu F. When it is charged from 0.1 C to 0....

    Text Solution

    |

  17. The dimension of (a)/(b) in the equation p=(a-t^(-2))/(bx) where P is ...

    Text Solution

    |

  18. Two identical wires have the same fundamental frequency of 400 Hz . wh...

    Text Solution

    |

  19. Two open organ pipes of fundamental frequencies n(1) and n(2) are join...

    Text Solution

    |

  20. The optical path of a monochromatic light is same if it goes through 4...

    Text Solution

    |