Home
Class 12
PHYSICS
The number of turns in the primary coil ...

The number of turns in the primary coil of a transformer is `200` and the number of turns in the secondary coil is `10` if `240` volt `AC` is applied to the primary, the output from the secondary will be

A

48 V

B

24 V

C

12 V

D

6 V

Text Solution

Verified by Experts

The correct Answer is:
C
`e_(S)=(n_(S))/(n_(P))xxe_(P)=(10)/(200)xx240=12V`
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 number of turns in the primary coil of a transformer is 200 and the number of turns in the secondary coil is 1.0 if 240 volt AC is applied to the primary, the output from the secondary will be

The number of the turns in the primary coil of a transformer is 10 times than the same in the secondary coil . If the voltage across the primary is 20 V then find the voltage across the secondary .

The number of turns in secondary coil of a transformer is 100 times the number of turns in primary coil. What is the transformer ratio ?

The primary coil of an ideal transformer has 100 turns and the secondary coil has 600 turns. Then

In the secondary coil of step-up transformer , the number of turns are ___

the number of turns in primary and secondary coils of a transformer are 100 and 20 respectively. If an alternating potential of 200 volt is applied to the primary, the induced potential in secondary will be

In a transformer the primary has 500 turns and secondary has 50 turns . 100 volts are applied to the primary coil, the voltage developed in the secondary will b

The input voltage and output voltage in the primary and secondary coils of a transformer are 250 V and 5 V, respectively. If the number of turns in the primary coil of the transformer is 1000, find the number of turns in its secondary coil. Also mention, whether the transformer is a step-up one or a step-down one ?

The number of turns in the primary coil of a transformer are 100 and that in the secondary coil are 200. What type of transformer is it ? If the input voltage in the primary coil of the transformer is 200 V, find the output voltage in the secondary coil of the transformer.

A transformer has 1500 turns in the primary coil and 1125 turns in the secondary coil. If a voltage of 200V is applied across the primary coil , then the voltage in the secondary coil is :

NIKITA PUBLICATION-ELECTROMAGNETIC INDUCTION-MCQs
  1. A step up transformer connected to a 220V AC line is to supply 22 kV f...

    Text Solution

    |

  2. A transformer is employed to

    Text Solution

    |

  3. The number of turns in the primary coil of a transformer is 200 and th...

    Text Solution

    |

  4. A step-up transformer has transformation ratio of 3:2 what is the volt...

    Text Solution

    |

  5. A step-down transformer is connected to main supply 200V to operate a ...

    Text Solution

    |

  6. Voltage in the secondary coil of a transfomer does not depend upon

    Text Solution

    |

  7. Large transformers, when used for some time, become hot and are cooled...

    Text Solution

    |

  8. In a step-up transformer the voltage in the primary is 220 V and the c...

    Text Solution

    |

  9. A transformer has 100 turns in the primary coil and carries 8A current...

    Text Solution

    |

  10. In a primary coil 5A current is flowing on 220 volts. In the secondary...

    Text Solution

    |

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

    Text Solution

    |

  12. Quantity that remains unchanged in a transformer is

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  15. Core of transformer is made up

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  19. Alternating currents can be produced by a

    Text Solution

    |

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

    Text Solution

    |