Home
Class 12
PHYSICS
A transformer has 100 turns in the prima...

A transformer has `100` turns in the primary coil and carries `8A` current. If input power is one kilowatt, the number of turns required in the secondary coil to have `500V` output will be

A

100

B

200

C

400

D

300

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • NTA NEET SET 65

    NTA MOCK TESTS|Exercise PHYSICS|44 Videos
  • NTA NEET SET 67

    NTA MOCK TESTS|Exercise PHYSICS|45 Videos

Similar Questions

Explore conceptually related problems

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 :

In a transformer, number of turns in the primary coil are 140 and that in the secondry coil are 280. If current i primary coil is 4A, then that in the secondary coil is

The coils of a step down transformer have 500 and 5000 turns. In the primary coil an ac of 4 ampere at 2200 volts is sent. The value of the current and potential difference in the secondary coil will be

A transformer consisiting of 300 turns in the primary and 150 turns in the secondary gives output power of 2.2 kw. If the current in the secondary coil is 10 A, then the input voltage and current in the primary coil are:

A transformer has turn ration 100//1 . If secondary coil has 4amp current then current in primary coil is

A transformer has 100 turns in the primary and 500 turns in the secondary. If the primary is connected to 220V DC supply, then the voltage develop across the secondary will be

In a transformer, the number of turns in primary and secondary are 500 and 2000 respectively. If current in primary is 48A , the current in the secondary is

NTA MOCK TESTS-NTA NEET SET 66-PHYSICS
  1. Mobility of free electrons in a conductor is

    Text Solution

    |

  2. Three resistances of 4Omega each are connected as shown in the figure...

    Text Solution

    |

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

    Text Solution

    |

  4. The inductance of a solenoid of mean diameter 1 cm,1 m long , wound wi...

    Text Solution

    |

  5. An electric dipole is fixed at the origin of coordinates. Its moment i...

    Text Solution

    |

  6. For the following electric field lines, the the electric field is

    Text Solution

    |

  7. Two bodies of masses m and 4m are placed at a distance r. The gravitat...

    Text Solution

    |

  8. The semi -major axis of the orbit of Saturn is approximately nine ti...

    Text Solution

    |

  9. Two identical square rods of metal are welded end to end as shown in f...

    Text Solution

    |

  10. For a gas R/CV = 0.4, where R is the universal gas constant and C is m...

    Text Solution

    |

  11. A monatomic gas expands at constant pressure on heating. The percentag...

    Text Solution

    |

  12. A wire is parallel to a square coil . The coil and wire carry currents...

    Text Solution

    |

  13. Two long parallel wires are at a distance 2d apart. They carry stead...

    Text Solution

    |

  14. The net magnetic moment of the identical magnets each of magnetic mome...

    Text Solution

    |

  15. A blind person after walking 10 steps in one direction, each oflength ...

    Text Solution

    |

  16. A particle is projected from the ground with an initial speed of v at ...

    Text Solution

    |

  17. The acceleration of 3 kg block in the arrangement shown in the diagra...

    Text Solution

    |

  18. Consider a car moving on a straight road with a speed of 100m//s. The ...

    Text Solution

    |

  19. If 10% of a radioactive substance decays in every 5 year, then the per...

    Text Solution

    |

  20. The half-life period of a radio-active element X is same as the mean l...

    Text Solution

    |