Home
Class 12
PHYSICS
The peak value of an alternating emf E g...

The peak value of an alternating emf E given by
`E=(E_0) cos omega t`
is 10V and frequency is 50 Hz. At time `t=(1//600)s` the instantaneous value of emf is

A

10V

B

`5sqrt3V`

C

5V

D

1V

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • ALTERNATING CURRENT

    CENGAGE PHYSICS|Exercise Single Correct|10 Videos
  • ALTERNATING CURRENT

    CENGAGE PHYSICS|Exercise Comphension Based|8 Videos
  • ALTERNATING CURRENT

    CENGAGE PHYSICS|Exercise Archives Integer|1 Videos
  • OSCILLATIONS

    CENGAGE PHYSICS|Exercise QUESTION BANK|39 Videos
  • ATOMIC PHYSICS

    CENGAGE PHYSICS|Exercise ddp.4.3|15 Videos

Similar Questions

Explore conceptually related problems

The peak value of an alternating emf E given by E=(E_0) cos omega t is 10V and freqency is 50 Hz. At time t=(1//600)s the instantaneous value of emf is

An alternating e.m.f. is given by E=10 cos omega t . If the frequency is 50 Hz, then at time t=(1/600)s the instantaneous value of e.m.f. is

.The peak value of an alternating e.m.f. which is given by E=E_(0) coswt is 10 volts and its frequency is 50Hz .At time t=(1)/(600) s,the instantaneous e.m.f.is

The r.m.s value of alternating e.m.f. is

The peak value of alternating e.m.f. in a generator is given by e_(0) =

The value of alternating emf E in the given circuit will be

An alternating emf given by V = V_(0) sin omegat has peak value 10 volt and freguency 50 Hz The instantaneous emf at .

The value of alternating e.m.f. is e = 500 sin 100pit , then the frequency of this potential in Hz is –

The peak value of an alternating voltage applied to a 50 omega resistance is 10V. Find the rms current. If the voltage frequency is 100 Hz, write the equation for the instantaneous current.

CENGAGE PHYSICS-ALTERNATING CURRENT-Single Correct Asnwer Type
  1. A generator produces a time varying voltage given by V=240 sin 120 t, ...

    Text Solution

    |

  2. The peak value of an alternating emf E given by E=(E0) cos omega t ...

    Text Solution

    |

  3. A resistance of 20ohms is connected to a source of an alternating pote...

    Text Solution

    |

  4. Voltage and current in an ac circuit are given by V=5 sin (100 pi t-...

    Text Solution

    |

  5. In a certain circuit current changes with time accroding to i=2sqrt(t)...

    Text Solution

    |

  6. Match the following {:(,"Currents","r.m.s. values"),((1),x(0) sin om...

    Text Solution

    |

  7. If i= t^(2), 0 lt t lt T then r.m.s. value of current is

    Text Solution

    |

  8. The r.m.s. voltage of the wave form shown is

    Text Solution

    |

  9. The output current versus time curve of a rectifire is shown in the fi...

    Text Solution

    |

  10. An alternating current I in an inductance coil varies with time t acco...

    Text Solution

    |

  11. Two sinusoidal voltage of the same frequency are shown in the diagram....

    Text Solution

    |

  12. The voltage across a pure inductor is represented by the following dia...

    Text Solution

    |

  13. In pure inductive circuit, the curves between frequency f and reciproc...

    Text Solution

    |

  14. The graphs given below depict the dependence of two reactive impedence...

    Text Solution

    |

  15. Identify the graph which correctly reperesents the variation of capaci...

    Text Solution

    |

  16. Is the following circuit correctly drawn

    Text Solution

    |

  17. An alternating emf is applied across a parallel combination of a resis...

    Text Solution

    |

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

    Text Solution

    |

  19. A bulb and a capacitor are in series with an AC source. On increasing ...

    Text Solution

    |

  20. For a series RLC circuit R=X(L)=2X(C). The impedence of the current an...

    Text Solution

    |