Home
Class 12
PHYSICS
Quantity that remains unchanged in a tra...

Quantity that remains unchanged in a transformer is

A

voltage

B

current

C

frequency

D

none of these

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

Name the quantity which remains unchanged during the flight of an oblique projectile.

When a sound wave goes from one medium to another, the quantity that remains unchanged is :

Parameter that remains unchanged during conditions of strenuous exercise in an individual is

Muscle band that remains unchanged during contraction and relaxation of skeletal muscle is

NIKITA PUBLICATION-ELECTROMAGNETIC INDUCTION-MCQs
  1. In a primary coil 5A current is flowing on 220 volts. In the secondary...

    Text Solution

    |

  2. The output voltage of a transformer connected to 220 voltl line is 110...

    Text Solution

    |

  3. Quantity that remains unchanged in a transformer is

    Text Solution

    |

  4. In a transformer, the number of turns in primary and secondary are 500...

    Text Solution

    |

  5. The turn ratio of a transformers is given as 2:3. If the current throu...

    Text Solution

    |

  6. Core of transformer is made up

    Text Solution

    |

  7. A transformer with efficiency 80% works at 4 kW and 100 V. If the seco...

    Text Solution

    |

  8. In a step up transformer, if ratio of turns of primary to secondary is...

    Text Solution

    |

  9. A step-down transformer is used on a 1000 V line to deliver 20A at 120...

    Text Solution

    |

  10. Alternating currents can be produced by a

    Text Solution

    |

  11. An emf induced in a coil rotating in a uniform magnetic field is given...

    Text Solution

    |

  12. The maximum value of emf indued in a coil rotating in a uniform magnet...

    Text Solution

    |

  13. The alternaing current of equivalent value of I(0)//sqrt(2) is

    Text Solution

    |

  14. The peak value of the a.c. current flowing throw a resistor is given b...

    Text Solution

    |

  15. Alternating current can be measured with the help of

    Text Solution

    |

  16. D.C. ammeter is connected in a circuit through which an a.c. emf of 50...

    Text Solution

    |

  17. The r.m.s. value of an alternating current is

    Text Solution

    |

  18. The maximum value of A.C. emf in a complete cycle is

    Text Solution

    |

  19. A voltmeter reads V volts in an A.C. circuit then V is

    Text Solution

    |

  20. AC measuring instruments measures

    Text Solution

    |