Home
Class 12
PHYSICS
The number of turns in primary and secon...

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 the current in the secondary coil is

A

1A

B

2A

C

4A

D

5A

Text Solution

Verified by Experts

The correct Answer is:
A
Transformation ratio,`(N_(P))/(N_(S))=(I_(s))/(I_(p))`
`(50)/(200)=I_(S)/(4)`
`I_(s)=1 A`
Promotional Banner

Topper's Solved these Questions

  • ELECTRIC CURRENT AND ELECTROSTATIC POTENTIAL

    SIA PUBLICATION|Exercise MCQ|69 Videos

  • GRAVITATION

    SIA PUBLICATION|Exercise MCQs|35 Videos

Similar Questions

Explore conceptually related problems

Define primary and secondary pollutants

IF the current in the coil is in clockwise then what would be the face of the coil?

The magnetic field at the centre of the current carrying coil is

SIA PUBLICATION-ELECTROMAGNETIC INDUCTION-MCQS
  1. The magnitude of the induced emf in a coil of inductance 30 mH in whic...

    Text Solution

    |

  2. A small square loop of wire of side 'I' is placed inside a large squar...

    Text Solution

    |

  3. A coil of wire of radius r has 600 turns and a self inductance of 108 ...

    Text Solution

    |

  4. The electrical field for an electromagnetic wave in free space E=i30 (...

    Text Solution

    |

  5. Two short magnets have their magnetic moments 1.2 Am^(2) and 1.0 Am^(2...

    Text Solution

    |

  6. A Primary coil and secondary coil are are placed close to each other ....

    Text Solution

    |

  7. A straight conductor of length 4 m moves at a speed of 10m//s When the...

    Text Solution

    |

  8. Some physical quantities are given in the list I and related units are...

    Text Solution

    |

  9. Match the following and find the correct pairs .

    Text Solution

    |

  10. The intensity of the magnetic induction field at the centre of a singl...

    Text Solution

    |

  11. The number of turns in primary and secondary coils of a transformer is...

    Text Solution

    |

  12. A rectangular loop length I and breadth b is placed at distance of x ...

    Text Solution

    |

  13. A small square loop of wire of side 'I' is placed inside a large squar...

    Text Solution

    |

  14. An inductance 1 H is connceted in series with an Ac source of 220V and...

    Text Solution

    |

  15. A coil has 1,000 turns 500 cm^(2) as its area.The plane of the coil is...

    Text Solution

    |

  16. A conducting rod of length L rotates with angular speed omega in a uni...

    Text Solution

    |

  17. If a change is current of 0.01 A in one coil produces a change in magn...

    Text Solution

    |

  18. A varying current in a coil changes from 10A to zero in 0.5 s. If the ...

    Text Solution

    |

  19. A varying current in a coil changes from 10A to zero in 0.5 s. If the ...

    Text Solution

    |