Home
Class 12
PHYSICS
A step -down transformer converts a volt...

A step -down transformer converts a voltageof 2,200 V into 220 V in the transmission line. Number of turns in primary coil is 5,000. Efficiency of transformer is 90% and its output power is 8 kW. Calculate number of turns in secodnary coil.

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

A step -down transformer converts a voltageof 2,200 V into 220 V in the transmission line. Number of turns in primary coil is 5,000. Efficiency of transformer is 90% and its output power is 8 kW. Calculate input power.

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

A step-down transformer is used to reduce 220V supply to 11V. The primary draws 5 A of current, while th secondary 90 A. The efficiency of the transformer is

In an ideal transformer, number of turns in primary and secondary are 200 and 1000 respectively. If the power input to the primary is 10 kW at 200 V, calculate current in parimary.

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.

A transformer whose efficiency is 90%, draws 5 A when 200 V is applied to its primary coil. If output is drawn at 300 V, what is the current in secondary coil ? If number of turns in primary coil is 500, what is the number of turns in secondary coil?

An ideal transformer has 5,000 turns on its primary coil . It is to be used to convert a mains supply of 230 V.to an alternating voltage having a peak value of 9.0 V. Calculate the number of turns on the secondary coil.

In an ideal transformer, number of turns in primary and secondary are 200 and 1000 respectively. If the power input to the primary is 10 kW at 200 V, calculate output voltage

MODERN PUBLICATION-ALTERNATING CURRENTS-EXERCISE
  1. A step -down transformer converts a voltageof 2,200 V into 220 V in th...

    Text Solution

    |

  2. A lamp is connected in series with a capacitor to a high frequency a.c...

    Text Solution

    |

  3. An air core coil and an electric bulb are connected in series across a...

    Text Solution

    |

  4. Answer the following questions: A choke coil in series with a lamp is ...

    Text Solution

    |

  5. A lamp is connected in series with a capacitor. What will happen if d....

    Text Solution

    |

  6. Explain : voltages across L and C in series are 180^(@) out of phase, ...

    Text Solution

    |

  7. The total impedance of a circuit decreases, when a capacitor is added ...

    Text Solution

    |

  8. When an a.. Circuit with a series combination of inductance, capacitan...

    Text Solution

    |

  9. When a capacitor is connected in series LR circuit the alternating cur...

    Text Solution

    |

  10. An alternating voltage of frequency f is applied across LCR circuit. L...

    Text Solution

    |

  11. An alternating voltage of frequency f is applied across LCR circuit. L...

    Text Solution

    |

  12. Give applications of resonance in series LCR circuit.

    Text Solution

    |

  13. An capacitor C, a variable resistor R and a bulb B are connected in se...

    Text Solution

    |

  14. An capacitor C, a variable resistor R and a bulb B are connected in se...

    Text Solution

    |

  15. A capacitor with capacitance C and a coil with active resistance R and...

    Text Solution

    |

  16. An inductor L of inductance X(L) is connected in series with a bulb B ...

    Text Solution

    |

  17. An inductor L of inductance X(L) is connected in series with a bulb B ...

    Text Solution

    |

  18. As shown in figure an electric lamp having coil of negligible inductan...

    Text Solution

    |

  19. As shown in figure an electric lamp having coil of negligible inductan...

    Text Solution

    |

  20. In the circuit shown below R represents an electric bulb. If the frequ...

    Text Solution

    |

  21. Show in the figure, two electric circuits A and B. Calculate the ratio...

    Text Solution

    |