Home
Class 12
PHYSICS
What is a step down transformer?...

What is a step down transformer?

Text Solution

Verified by Experts

A step down transformer is one that generates an output voltage which is less than the input voltage.
Promotional Banner

Topper's Solved these Questions

  • ALTERNATING CURRENT

    SUBHASH PUBLICATION|Exercise TWO MARKS QUESTIONS WITH ANSWERS|12 Videos

  • ALTERNATING CURRENT

    SUBHASH PUBLICATION|Exercise THREE MARKS QUESTIONS WITH ANSWERS|11 Videos

  • ANNUAL EXAM QUESTION PAPER -MARCH -2017

    SUBHASH PUBLICATION|Exercise PART -D|12 Videos

Similar Questions

Explore conceptually related problems

What is a step up transformer?

A power transmission line feeds input power at 2300V to a step down transformer with its primary windings having 4000 turns. What should be the number of turns in the secondary in order to get the output power at 230V? For an efficiency of 0.70, calculate the rms value of the primary current when rms value of the secondary current is 5A.

What is a transformer ? Mention two sources of energy loss in a transformer

What is a transformer ? Write an expression for turns ratio .

A small town with a demand of 800 kW of electric power at 220 V is situated 15 km away from an electric plant generating power at 440 V. The resistance of the two wire line carrying power is 0.5 Omega per km. The town gets power from the line through a 4000-220 V step-down transformer at a sub-station in the town. (a) Estimate the line power loss in the form of heat. (b) How much power must the plant supply, assuming there is negligible power loss due to leakage? (c) Characterise the step up transformer at the plant.

SUBHASH PUBLICATION-ALTERNATING CURRENT -NUMERICALS WITH SOLUTIONS
  1. What is a step down transformer?

    Text Solution

    |

  2. A 220 AC voltage source is connected across a pure inductor of inducta...

    Text Solution

    |

  3. A 220 AC voltage source is connected across a pure inductor of inducta...

    Text Solution

    |

  4. A 220 AC voltage source is connected across a pure inductor of inducta...

    Text Solution

    |

  5. If a coil is to have a reactance of 16Omega for a frequency 2 kHz, the...

    Text Solution

    |

  6. A pair of adjacent coils have a mutual inductance of 0.25 H. If the cu...

    Text Solution

    |

  7. A sinusoidal current is represented by the equation I=2sin100pit. Calc...

    Text Solution

    |

  8. A sinusoidal current is represented by the equation I=2sin100pit. Calc...

    Text Solution

    |

  9. A sinusoidal current is represented by the equation I=2sin100pit. Calc...

    Text Solution

    |

  10. A sinusoidal current is represented by the equation I=I(0)sin100pit. C...

    Text Solution

    |

  11. An A.C. Source of 250 V, 50 Hz is connected to a circuit consisting of...

    Text Solution

    |

  12. A coil of resistance 100Omega, an inductor of 0.5 H and a capacitor of...

    Text Solution

    |

  13. In the circuit as show in fgure, find the impedance of the circuit. Wh...

    Text Solution

    |

  14. A 100Omega resistor is connected to a 220 V, 50 Hz ac supply What is...

    Text Solution

    |

  15. A 100Omega resistor is connected to a 220 V, 50 Hz ac supply What is...

    Text Solution

    |

  16. A 44 mH inductor is connected to a 220 V, 50Hz ac supply. Determine th...

    Text Solution

    |

  17. A 60muF capacitor is connected to a 110V, 60Hz, ac supply. Determine t...

    Text Solution

    |

  18. Obtain the resonant frequency omega(r) of a series LCR circuit with L ...

    Text Solution

    |

  19. A charged 30muF capacitor is connected in series to a 27mH inductor. W...

    Text Solution

    |

  20. A series LCR circuit with R=20Omega,L=1.5H,andC=35muF is connected to ...

    Text Solution

    |

  21. A coil of inductance 0.50 H, and resistance 100Omega is connected to a...

    Text Solution

    |