Home
Class 12
PHYSICS
What will increase in step-down transfor...

What will increase in step-down transformer?

A

Current

B

Voltage

C

Power

D

Frequency

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC INDUCTION & ALTERNATIVE CURRENT

    VMC MODULES ENGLISH|Exercise EFFICIENT|49 Videos

  • ELECTROMAGNETIC INDUCTION & ALTERNATING CURRENT

    VMC MODULES ENGLISH|Exercise IN-CHAPTER EXERCISE-G|10 Videos

  • ELECTROSTATICS

    VMC MODULES ENGLISH|Exercise JEE Advanced (Archive)|89 Videos

Similar Questions

Explore conceptually related problems

Statement-1 : A step up transformer can also be used as a step down transformer. Statement-2 : This is because E_s/E_P = n_s/n_P

A thermal power plant produed electric power of 600kW at 4000V, which is to be transported to a place 20 km away form the power plant for consumer's usage. It can be transported either directly with a cable of large current carrying capacity or by sing a combination of step-up and step-down transfprmers at the two ends. THe drawback of the direct transmission is the large energy dissipation. In the method wsing transformers, the dissipatiion is much smaller. In this method a step-up transformers is used at the plant side so that the current is reduced to a smaller value. At the consumers'end, a step-down transformer is used to supply power to the consumers at the specified lower voltage. It is reasonable to assume that the power cable is purely resostive and the transformers are ideal with power factor unity. All the currents and voltagementioned are values. In the method using the transformers assume that the ratio of the number of turns in the primary to that in the secondary in the step-up transformer is 1:10 if the power to the consumers has to be supplied at 200V, the ratio of the number of turns in the primary to that in the secondary in the step-down transformer is

The secondary coil of an ideal step down transformer is delivering 500 watt power at 12.5 A current. If the ratio of turns in the primary to the secondary is 5 : 1 then the current flowing in the primary coil will be:

What is an ideal transformer ?

For an ideal step-down transformer, the quantity which is constant for both the coils is

The transformation ratio in the step -up transformer is

The output of a step-down transformer is measured to be 24 V when connected to a 12 watt light bulb. The value of the peak current is

The output of a step-down transformer is measured to be 24 V when connected to a 12 watt light bulb. The value of the peak current is

The output of a step-down transformer is measured to be 24 V when connected to a 12 watt light bulb. The value of the peak current is

A power transmission line feeds input power at 2200 V to a step-down transformer with its primary windings having 3000 turns. Find the number of turns in the secondary to get the power output at 220 V .

VMC MODULES ENGLISH-ELECTROMAGNETIC INDUCTION & ALTERNATIVE CURRENT -IMPECCABLE
  1. Voltage in the secondary coil of a transfomer does not depend upon

    Text Solution

    |

  2. When power is drawn from the secondary coil of the transformer, the dy...

    Text Solution

    |

  3. What will increase in step-down transformer?

    Text Solution

    |

  4. In a step up transformer the turn ratio is 1 : 2. A Leclanche cell (e...

    Text Solution

    |

  5. The e.m.f. induced in a secondary coil is 20000 V when the current bre...

    Text Solution

    |

  6. Two coils are wound on the same iron rod so that the flux generat...

    Text Solution

    |

  7. A current of 5A is flowing at 220V in the primary coil of a transforme...

    Text Solution

    |

  8. A transformer has 1500 turns in the primary coil and 1125 turns in th...

    Text Solution

    |

  9. An electric generator is based on :

    Text Solution

    |

  10. The primary and secondary coils of a transforme have 50 and 1500 turns...

    Text Solution

    |

  11. In any AC circuit the emf (e) and the current (i) at any instant are g...

    Text Solution

    |

  12. Alternating current can not be measured by dc ammeter because :

    Text Solution

    |

  13. In step-up transfomer, the relation between number of turns in primary...

    Text Solution

    |

  14. The oscillating electric and magnetic field vectors of electromagnetic...

    Text Solution

    |

  15. Alternating current is transmitted to take place

    Text Solution

    |

  16. An AC ammeter is used to measure current is a circuit . When a given d...

    Text Solution

    |

  17. An AC source is 120 V-60 Hz. The value of voltage after 1/720 s from...

    Text Solution

    |

  18. Two solenoids of equal number of turns have their lengths and the radi...

    Text Solution

    |

  19. An electric motor turns on DC source of emf 200 V and drawn a current ...

    Text Solution

    |

  20. In an circuit, V and I are given by V=150sin(150t) V and I =150sin(150...

    Text Solution

    |