Home
Class 12
PHYSICS
In a purely resistive AS circuit,...

In a purely resistive `AS` circuit,

A

current leads emf by a phase angle of `pi` radians

B

current leads emf by a phase angle of `pi//2` radians

C

current and emf are in phase

D

current lags behind emf by a phase angle of `pi//2` radians

Text Solution

Verified by Experts

The correct Answer is:
C
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

Assertion: Faraday's laws are consequences of conservation of energy. Reason: In a purely resistive AC circuit, the current lags behind the e.m.f. in phase

In a purely resistive ac circuit, the current

Derive the relation between current and voltage in a purely resistive circuit ?

Obtain an expresion for average power dissipated in a purely resistive A.C. circuit. Define power factor of the circuit and state its value for purely resistive A.C. circuit. A rectangular coil of a moving coil galvanometer contains 50 turns each having area 12cm^(2) . It is suspended in radial magnetic field 0.025 Wb//m^(2) by a fibre of twist constant 15xx10^(-10)N-m//degree . Calculate the sensitivity of the moving coil galvanometer.

How much power is consumed in a purely inductive and a purely capacitive AC circuit ?

The phase relationship between current and voltage in a pure resistive circuit is best represented by

In a purely inductive circuit, the current is

In a purely capacitive circuit, the current

In a purely capcitive circuit, the e.m.f.

NIKITA PUBLICATION-ELECTROMAGNETIC INDUCTION-MCQs
  1. A rectangular coil of 25 turns, area of 25cm^(2) and resistance of 4 o...

    Text Solution

    |

  2. Henry is equivalent to

    Text Solution

    |

  3. In a purely resistive AS circuit,

    Text Solution

    |

  4. In a series LCR circuit, at resonance, power factor is …….. .

    Text Solution

    |

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

    Text Solution

    |

  6. Same current is flowing in two alternating circuits. The first circuit...

    Text Solution

    |

  7. In a circuit, the current lags behind the voltage by a phase differenc...

    Text Solution

    |

  8. Average power in the L-C-R circuit depends upon

    Text Solution

    |

  9. A transformer is having 2100 turns in primary and 4200 turns is second...

    Text Solution

    |

  10. When the number of turns and the length of the solenoid are doubled ke...

    Text Solution

    |

  11. When the current changes from +2A to -2A in 0.05s, and emf of 8B is in...

    Text Solution

    |

  12. An alternating voltage E = 200sqrt(2) sin (100 t)V is applied to a 2 m...

    Text Solution

    |

  13. In a series LCR circuit, at resonance, power factor is …….. .

    Text Solution

    |

  14. In series LCR circuit at resonance,

    Text Solution

    |

  15. The self inductane of coil of 400 turns is 8 mH. If current of 5 mA f...

    Text Solution

    |

  16. In LCR series circuit an ac emf of 2 volt and frequency 50 Hz is appli...

    Text Solution

    |

  17. A coil of self-inductance L is connected in series with a bulb B and a...

    Text Solution

    |

  18. A wire loop is rotated in magneitc field. The frequency of change of d...

    Text Solution

    |

  19. If 'N' is the number of turns in a coil, the value of self inductance ...

    Text Solution

    |

  20. In LCR series circuit , an alternating emf e and current i are given b...

    Text Solution

    |