Home
Class 12
PHYSICS
Core of transformer is made up...

Core of transformer is made up

A

soft iron

B

steel

C

iron

D

alnico

Text Solution

Verified by Experts

The correct Answer is:
A
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

Why the core of a transformer is made up of a high permeability material ?

Assertion : When a current flows in the coil of a transformer then its core becomes hot. Reason : The core of transformer is made of softiron.

The core of a transformer is made of a material having norrow hysterisis loop. Why ?

The core of a transformer is made of magnetic material of high permeanbility. Why ?

Permanent magnets are made of steel while the core of transformers is made of soft iron. Why?

Statement (A) : Flux leakage in a transformer can be minimized by winding the primary and secondary coils one over the other. Statement (B) : Core of the transformer is made of soft iron

The core of transformer is laminated so that

The core of nuclesome is made up of

NIKITA PUBLICATION-ELECTROMAGNETIC INDUCTION-MCQs
  1. In a transformer, the number of turns in primary and secondary are 500...

    Text Solution

    |

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

    Text Solution

    |

  3. Core of transformer is made up

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  7. Alternating currents can be produced by a

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  12. Alternating current can be measured with the help of

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  17. AC measuring instruments measures

    Text Solution

    |

  18. In an AC circuit, the mass value of the current I("rms") is related to...

    Text Solution

    |

  19. If an AC ammeter reads I A in an AC circuit, then the peak value of th...

    Text Solution

    |

  20. The average value of alternating current over a complete cycle ...

    Text Solution

    |