Home
Class 12
PHYSICS
What is increase in step-down transforme...

What is increase in step-down transformer?

A

voltage

B

current

C

power

D

current density

Text Solution

Verified by Experts

The correct Answer is:
B
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

The transformation ratio in the step-down transformer is

Which of the following equantities remain constant in a step- down transformer ?

A portable radio has a built in transformer so that it can work form the mains instead of batteries. Is this a step - up or step down transformer ?

What is Transformer? Explain step up and step down transformer?

How id the primary coil in a step-down transfomer different from that in a step-up transformer?

NIKITA PUBLICATION-ELECTROMAGNETIC INDUCTION-MCQs
  1. The device that does not work on the principle of mutual induction is

    Text Solution

    |

  2. A transfomer is employed to

    Text Solution

    |

  3. What is increase in step-down transformer?

    Text Solution

    |

  4. A device which converts low ac voltage at high current into high ac vo...

    Text Solution

    |

  5. Why are electromagnets made of soft iron?

    Text Solution

    |

  6. The transformation ratio in the step -up transformer is

    Text Solution

    |

  7. In a transformer 220 ac voltage is increased to 2200 volts. If the nu...

    Text Solution

    |

  8. The ratio of secondary to the primary turns in a transformer is 3:2. I...

    Text Solution

    |

  9. The primary winding of a transformer has 100 turns and its secondary w...

    Text Solution

    |

  10. A step-down transformer is connected to 2400 volts line and 80 amperes...

    Text Solution

    |

  11. A loss free transformer has 500 turns on its primary winding and 2500 ...

    Text Solution

    |

  12. An ideal transformer has 100 turns in the primary and 250 turns in the...

    Text Solution

    |

  13. The alternating voltage induced in the secondary coil of a transformer...

    Text Solution

    |

  14. We can reduce eddy currents in the core of transformer

    Text Solution

    |

  15. A 100% efficient transformer has 100 turns in the primary and 25 turns...

    Text Solution

    |

  16. The efficiency of transfomer is very high because

    Text Solution

    |

  17. In a lossless transformer an alternating current of 2 amp is flowing i...

    Text Solution

    |

  18. A transformer connected to 220 volt line shows an output of 2A at 1100...

    Text Solution

    |

  19. A power transformer is used to step up an alternating e.m.f. of 220 V ...

    Text Solution

    |

  20. A step up transformer connected to a 220V AC line is to supply 22 kV f...

    Text Solution

    |