Home
Class 12
PHYSICS
In a step-up transformer the voltage in ...

In a step-up transformer the voltage in the primary is `220 V` and the currrent is `5A`. The secondary voltage is found to be `22000V`. The current in the secondary (neglect losses)is

A

`5A`

B

`50A`

C

`500A`

D

`0.05A`

Text Solution

Verified by Experts

The correct Answer is:
D
`I_(S)=(e_(P))/(e_(S))xxI_(P)=(220xx5)/(22000)=0.05`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

In an ideal transformer, the voltage and current in the primary are 200V and 2 A respectively and voltage in secondary is 2000V . The value of the current in secondary is

In a step up transformer, the input voltage is 300 V and the output voltage is 15 KV. Then the ratio of the number of turns in the primary to that in the secondary is

In an ideal transfomer, the voltage is step-down from 11 kV to 220 V. if the primary current be 100 A, the current in the secondary should be

In an ideal transfomer, the voltage is step-down from 11 kV to 220 V. if the primary current be 100 A, the current in the secondary should be

A transformer of efficiency 90% has turns ratio 10 : 1. If the voltage across the primary is 220 V and current in the primary is 0.5 A, then the current in secondary is

In an ideal transformer, the voltagae and the current in the primary coil are 200V and 2 A, respectively. If the voltage in the secondary coil is 200 V, then the value of current in the secondary coil will be

NIKITA PUBLICATION-ELECTROMAGNETIC INDUCTION-MCQs
  1. Voltage in the secondary coil of a transfomer does not depend upon

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  7. Quantity that remains unchanged in a transformer is

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  10. Core of transformer is made up

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  14. Alternating currents can be produced by a

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  19. Alternating current can be measured with the help of

    Text Solution

    |

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

    Text Solution

    |