Home
Class 12
PHYSICS
For an A.C. given by I=50cos(100t+45^(@)...

For an A.C. given by `I=50cos(100t+45^(@))A`. The value of `I_(rms)=`_________A.

A

zero

B

`50sqrt(2)`

C

`25`

D

`25sqrt(2)`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC INDUCTION

    TARGET PUBLICATION|Exercise EVALUATION TEST|8 Videos

  • ELECTROMAGNETIC INDUCTION

    TARGET PUBLICATION|Exercise CRITICAL THINKING|84 Videos

  • ELASTICITY

    TARGET PUBLICATION|Exercise Evaluation test|14 Videos

  • ELECTROSTATICS

    TARGET PUBLICATION|Exercise EVALUATION TEST|14 Videos

Similar Questions

Explore conceptually related problems

An alternative current is given by I = (100sqrt2 sint) A . The RMS value of current is

The instantaneous value of an AC is given by I = 5 sin ( omega t + ph ) amp. The rms value of current is

The rms value of current I _ ( rms ) is

A certain A.C. voltage is represented by e=100 sin (100pi t+0.6) . The peak value of A.C. is

In an A.C. Circuit, the current is given by I=6 sin(200 pi t+(pi)/6)A The initial value of the current is

If the instantaneous current in a circuit is given by I = 20 cos (omega t + phi) A , the rms value of the current is

The equation of alternating of alternating current for a cuicuit is given by I = 50 cos 100 pi t . Calculate (i) frequency of a.c. applied, (ii) virtual value of current, (iii) value of current 1//600 s after it was maximum

The instantaneous emf an a.c. source is given by epsi=300 sin 314 t . What is the rms value of the emf?

TARGET PUBLICATION-ELECTROMAGNETIC INDUCTION-COMPETITIVE THINKING
  1. An alternating e.m.f. given by e=200 sin 50 t is applied to a circuit ...

    Text Solution

    |

  2. If instantaneous current is given by i=4 cos(omega t + varphi) amperes...

    Text Solution

    |

  3. For an A.C. given by I=50cos(100t+45^(@))A. The value of I(rms)=A.

    Text Solution

    |

  4. A multimeter reads a voltage of a certain A.C. source as 100V. What is...

    Text Solution

    |

  5. The number of turns in the coil of an A.C. generator is 100 and its cr...

    Text Solution

    |

  6. In an AC circuit, peak value of voltage is 423 volts. Its effective vo...

    Text Solution

    |

  7. A generator produces a time varying voltage given by V=240 sin 120 t, ...

    Text Solution

    |

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

    Text Solution

    |

  9. An AC generator produced an output voltage E=170sin 377t volts , where...

    Text Solution

    |

  10. A.C. voltmeter is connected to a source of e(0)=141.4 volt, then it wi...

    Text Solution

    |

  11. An alternating voltage E=200sqrt(2)sin(100t) is connected to a 1 micro...

    Text Solution

    |

  12. What is the reactance of a capacitor connected to a constant DC source...

    Text Solution

    |

  13. A small signal voltage V(t)=V(0)sin omegat is applied across an ideal ...

    Text Solution

    |

  14. For series LCR circuit, the wrong statement is

    Text Solution

    |

  15. In the series LCR circuit, the power dissipation is through

    Text Solution

    |

  16. An alternating current of frequency 'f' is flowing in a circuit contai...

    Text Solution

    |

  17. In a circuit L, C and R are connected in series with an alternating vo...

    Text Solution

    |

  18. Two coils A and B have mutual inductance 2xx10^(-2) Henry if the cur...

    Text Solution

    |

  19. Reactance of a capacitor of capacitance CmuF for ac frequency 400/pi H...

    Text Solution

    |

  20. In an AC circuit the reactance of a coil is sqrt(3) times its resistan...

    Text Solution

    |