Home
Class 12
PHYSICS
In a transformer the number of turns in ...

In a transformer the number of turns in primary and secondary are 500, 2500 turns, respectively. If the power input to primary is `80 xx 10^-3` W at 240 V, calculate output voltage.

Promotional Banner

Topper's Solved these Questions

  • Electromagnetic Induction

    CHETANA PUBLICATION|Exercise EXERCISE|109 Videos

  • Dual Nature of Radiation and Matter

    CHETANA PUBLICATION|Exercise EXERCISE|89 Videos

  • Electrostatics

    CHETANA PUBLICATION|Exercise Exercise|73 Videos

Similar Questions

Explore conceptually related problems

In a transformer the number of turns in primary and secondary are 500, 2500 turns, respectively. If the power input to primary is 80 xx 10^-3 W at 241 V, calculate : current in primary.

The number of turns in the primary and secondary coils of a transformer are 200 and 800 respectively. If the voltage developed across the secondary is 240V, then the potential difference across each turn of the primary will be

In an ideal transformer, the number of turns in the primary is 120 and that in the secondary is 240. What is the secondary current if the primary current is 6A

The ratio of the turns in the primary and secondary coils of transformer is1: 9. The ratio of the current in the primary to secondary is

The number of turns in primary and secondary coil of transformer are 1000 to 5000 and 90 V ac is applied to primary, hence the voltage at the secondary is

The primary coil of a transformer has 100 turns and the secondary coil has 300 turns. If the peak value of the alternating emf applied to the primary coil 150v, what is the peakvalue of the alternating emf obtained across the secondary coil?

In a step up transformer , the transformation ratio is 100. The primary voltage is 200V and input power is 1000 watt.The number of turns in the primary is 100. Calculate the voltage across the secondary

A step down transformer converts a voltage of 2200 V into 220V in the transmission line. Number of turns in primary coil is 5000. Efficiency of the transformer is 90% and its output power is 8 kW. Calculate the input power.

The amplifiers X , Y and Z are connected in series. If the voltage gains of X,Y and Z are 10, 20 and 30, respectively and the input signal is 1 mV (peak value.) Then what is the output signal voltage (peak value) If dc supply voltage is 10V ?

The amplifiers X , Y and Z are connected in series. If the voltage gains of X,Y and Z are 10, 20 and 30, respectively and the input signal is 1 mV (peak value.) Then what is the output signal voltage (peak value) If dc supply voltage is 5V ?

CHETANA PUBLICATION-Electromagnetic Induction-EXERCISE
  1. In a transformer the number of turns in primary and secondary are 500,...

    Text Solution

    |

  2. A magnetic flux associated with a coil changes by 5xx10^-2 Wb in 25 se...

    Text Solution

    |

  3. The current in one coil increasesfrom0 to 500 mA in 0.1 ms. The induce...

    Text Solution

    |

  4. An emf of 100 mV is induced in a conductor of length 1.2m when it move...

    Text Solution

    |

  5. The current increases at the rate of 10A s^-1 in the coil of inductan...

    Text Solution

    |

  6. The current in a coil changes from zero to 5A in 0.2 seconds, due to w...

    Text Solution

    |

  7. The mutual inductance between the two coils is 2 xx 10^-2H.Due to the ...

    Text Solution

    |

  8. A step down transformer, connected to mains supply 240V is made to ope...

    Text Solution

    |

  9. The primary winding of a transformer has 300 turns and its secondary w...

    Text Solution

    |

  10. A coil of effective area 10m^2 is placed at right angles to a magnetic...

    Text Solution

    |

  11. The current increases at the rate of 10A s^-1 in the coil of inductan...

    Text Solution

    |

  12. A coil of effective area 4m^2 is placed at right angles to a magnetic ...

    Text Solution

    |

  13. A rectangular coil (0.5 m xx 0.4m) has a resistance of 5Omega . The co...

    Text Solution

    |

  14. A rectangular coil (0.5 m xx 0.4m) has a resistance of 5Omega . The co...

    Text Solution

    |

  15. A coil of area 0.75 m^2 and 1000 turns is kept perpendicular to a magn...

    Text Solution

    |

  16. Find the self-inductance of a circuit in which an e.m.f. of 10V is ind...

    Text Solution

    |

  17. The mutual inductance of a pair of coils is 0.75H. If the current in t...

    Text Solution

    |

  18. A step down transformer has 800 turns in the primary. The supply volta...

    Text Solution

    |

  19. A coil of effective area 2m^2 is placed at right angles to a magnetic ...

    Text Solution

    |

  20. The back e.m.f. induced in an inductive coil is 100 V when the current...

    Text Solution

    |

  21. The coefficient of mutual inductance between a pair of coils is 5mH. F...

    Text Solution

    |