Home
Class 12
PHYSICS
Show diagramatically two different arran...

Show diagramatically two different arrangements used for winding the primary and secondary coils in a transformer. Assuming the transformer to be an ideal one write expressions fo rthe ratio of its output current to input current in terms of the number of turns in the primary and secondary coils. Mention two reasons for energy losses in an actual transformer.

Promotional Banner

Topper's Solved these Questions

  • ALTERNATING CURRENTS

    MODERN PUBLICATION|Exercise EXERCISE|201 Videos

  • CAPACITOR

    MODERN PUBLICATION|Exercise EXAMPLE|262 Videos

Similar Questions

Explore conceptually related problems

Ratio of number of turns in primary and secondary coil of 440V-22000V step up transformer is

Establish relation between voltage and current in primary and secondary coils of transformer.

An a.c. voltage of 200 V is applied to the primary of a transformer and voltage of 2,000 V is obtained form the secondary. Calculate the ratio of the currents through the primary and secondary coils.

A step-down transformer is used at 220 volt line to provided a current of 0.5 ampere to a 15 watt bulb. If the secondary has 20 turns, find the current and number of turns in the primary coil.

The number of turns in the primary and secondary coils of a transformer are 1000 and 3000 respectively. If a 80 V, a.c. supply is applied to the primary coil of the transformer, then the P.D. Per turn of the secondary will be

A step up transformer is used on a 120 volt line to provide a potential difference of 2,400 volt at 2 ampere current . If primary has 1,000 turns, find the number of turns in secondary and current in the primary coil.

The primary coil of an ideal stepup transformer has 100 turns and the transformer ratio is also 100. The input voltage and power are 220 V and 1100 W. Calculate nuber of turns in the secondary.

The primary coil of an ideal stepup transformer has 100 turns and the transformer ratio is also 100. The input voltage and power are 220 V and 1100 W. Calculate the current in the primary

MODERN PUBLICATION-ALTERNATING CURRENTS-EXERCISE
  1. Explain the function of a choke coil.

    Text Solution

    |

  2. Draw a schematic diagram of a cyclotron. Explain the underlying princi...

    Text Solution

    |

  3. With the help of labelled diagram, describe the principle,construction...

    Text Solution

    |

  4. Derive the relationship between peak and the rms value of current in a...

    Text Solution

    |

  5. Describe briefly, with the help of a lablled diagram, working of a ste...

    Text Solution

    |

  6. What are the factors which reduce the efficiency of a transformer ?

    Text Solution

    |

  7. Establish relation between voltage and current in primary and secondar...

    Text Solution

    |

  8. With the help of labelled diagram, describe the principle,construction...

    Text Solution

    |

  9. Explain the principle, construction and working of a step down transfo...

    Text Solution

    |

  10. With the help of labelled diagram, describe the principle,construction...

    Text Solution

    |

  11. What are copper loss, iron loss and hysteresis loss in transformer?

    Text Solution

    |

  12. What are copper loss, iron loss and hysteresis loss in transformer?

    Text Solution

    |

  13. What are copper loss, iron loss and hysteresis loss in transformer?

    Text Solution

    |

  14. What is a transformer? Explain its theory and give its main uses?

    Text Solution

    |

  15. Give the principle of a transformer, construction of a stepdown transf...

    Text Solution

    |

  16. Establish relation between voltage and current in primary and secondar...

    Text Solution

    |

  17. Show diagramatically two different arrangements used for winding the p...

    Text Solution

    |

  18. State the underlying principle of a transformer.

    Text Solution

    |

  19. Can a trasnformer be helpful in reducing the cost of transmission of e...

    Text Solution

    |

  20. Can a trasnformer be helpful in reducing the cost of transmission of e...

    Text Solution

    |