Home
Class 12
PHYSICS
The turn ratio of a transformers is give...

The turn ratio of a transformers is given as `2:3`. If the current through the primary coil is `3 A`, thus calculate the current through load resistance

A

`1` A

B

4.5 A

C

`2` A

D

1.5 A

Text Solution

Verified by Experts

The correct Answer is:
C

`N_(S)/N_(P)=I_(P)/I_(S)rArrN_(P)/N_(S)=I_(S)/I_(P)rArr2/3=I_(S)/3rArrI_(S)=2A`
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC INDUCTION

    ERRORLESS|Exercise PAST YEARS QUESTIONS|31 Videos
  • ELECTROMAGNETIC INDUCTION

    ERRORLESS|Exercise ASSERTION & REASON|20 Videos
  • ELECTROMAGNETIC INDUCTION

    ERRORLESS|Exercise NCERT BASED QUESTIONS (STATIC EMI)|39 Videos
  • CURRENT ELECTRICITY

    ERRORLESS|Exercise ASSERTION AND REASON|26 Videos
  • ELECTRON, PHOTON, PHOTOELECTRIC EFFECT & X -RAY

    ERRORLESS|Exercise ASSERTION & REASON|27 Videos

Similar Questions

Explore conceptually related problems

Calculate the current flows through resistance 2Omega .

The number of turns in primary and secondary coils of a transformer is 50 and 200, respectively. If the current in the primary coil is 4 A, then current in the secondary coil is

Current passing through 3 Omega resistance is

Turn ratio of a step-up transformer is 1 : 25. If current in load coil is 2A, then the current in primary coil will be :

In a stepup transformer, the ratio of number of turns in primary and secondary coils is 1 : 10 . What voltage will develop in the secondary if the primary is connected to 220 V mains ? If the current drawn from the secondary is 2A, calculate the current through the primary

The transformer ratio of transformer is 10 : 1 . The current in the primary circuit if the secondary current required is 100 A assuming the transformer be ideal, is

In the network shown calculate current through the cell (I_1) and the current I_(2) through the 2 R resistance.

An ideal transformer has primary and secondary coils of 200 turn and 40 turns respectively. If the current in the primary coil is 3A. Then the value of current in the secondary coil wil be

ERRORLESS-ELECTROMAGNETIC INDUCTION-NCERT BASED QUESTIONS (APPLICATION OF EMI (Dynamo, Transformer…))
  1. If a coil made of conducting wires is rotated between poles pieces of ...

    Text Solution

    |

  2. An AC generator of 220 V having internal resistance r=10 Omega and ext...

    Text Solution

    |

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

    Text Solution

    |

  4. In an ideal transformer the number of turns of primary and secondary c...

    Text Solution

    |

  5. A transformer rated at 10 kW is used to connect a 5 kV transmission li...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  9. The primary winding of transformer has 500 turns whereas its secondary...

    Text Solution

    |

  10. In a step-up transformer the turn ratio is 1:10. A resistance of 200 o...

    Text Solution

    |

  11. In a transformer, number of turns in the primary coil are 140 and that...

    Text Solution

    |

  12. A transformer is used to light a 100 W and 110 V lamp from a 220V main...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  15. A step-down transfomer reduces the voltage of a transmission line from...

    Text Solution

    |

  16. The number of turns of the primary and the secondary coils of a transf...

    Text Solution

    |

  17. A transformer of efficiency 90% draws an imput power of 4kw. An electr...

    Text Solution

    |

  18. A 220 V input is supplied to a transformer. The output circuit draws a...

    Text Solution

    |

  19. Which of the following is not an application of eddy currents?

    Text Solution

    |

  20. Eddy currents are produced when

    Text Solution

    |