Home
Class 12
PHYSICS
A transformer of frequency 60 Hz and 120...

A transformer of frequency 60 Hz and 120 V input has `8:1` turn ratio. The frequency of the output is

A

40hz

B

480Hz

C

2 Hz

D

60Hz

Text Solution

Verified by Experts

The correct Answer is:
D

In a transformer, frequency remains same for input & output.
Promotional Banner

Topper's Solved these Questions

  • NTA TPC JEE MAIN TEST 102

    NTA MOCK TESTS|Exercise PHYSICS |30 Videos
  • NTA TPC JEE MAIN TEST 104

    NTA MOCK TESTS|Exercise PHYSICS (SUBJECTIVE NUMERICAL)|10 Videos

Similar Questions

Explore conceptually related problems

In a half wave rectifier the AC input source of frequency 50 Hz is used. The fundamental frequency of the output is

A mass m attached to a spring A has a frequency of 3 Hz and a spring B has a frequency of 4 Hz.When both spring are connected as shown in the figure, Find the frequency (in Hz)of oscillation.

In a step-up transformer the turn's ratio is 10. If the frequency of the current in the primary coil is 50 Hz then of the frequency of the current in the second ary coil will be

In half wave rectification, if the input frequency is 50 Hz , what is the output frequency? What is the output frequency of a full wave rectifier for the same frequency?

If the frequency of input alternating potential in n, then the ripple frequency of output potential of full wave rectifier will be-

The shortest length of a resonance tube which resonates with a turning fork of frequency 256 Hz is 32 cm. The corresponding length for a fork of frequency 384 Hz is 20.8 cm. Calculate the end-correction and velocity of sound in air.

A transformer converts 240 V AC to 60 V AC. The secondary has 75 turns. The number of turns in the primary are

The input voltage and output voltage in the primary and secondary coils of a transformer are 250 V and 5 V, respectively. If the number of turns in the primary coil of the transformer is 1000, find the number of turns in its secondary coil. Also mention, whether the transformer is a step-up one or a step-down one ?

NTA MOCK TESTS-NTA TPC JEE MAIN TEST 103-PHYSICS
  1. A 25 W, 220V bulb and 100W, 220V bulb are joined in series and connect...

    Text Solution

    |

  2. Calculate the number of photons emitted per second by a 10 watt sodium...

    Text Solution

    |

  3. A transformer of frequency 60 Hz and 120 V input has 8:1 turn ratio. T...

    Text Solution

    |

  4. The time required for a 50Hz alternating current to increase from zero...

    Text Solution

    |

  5. A uniform electric field and a uniform magnetic field exist in a regio...

    Text Solution

    |

  6. A P-N junction diode connected to a battery of e.m.f. 4.5 V and an ext...

    Text Solution

    |

  7. With forward biased mode, the p-n junction diode

    Text Solution

    |

  8. A positive charge q is given to each plate of a parallel plate air cap...

    Text Solution

    |

  9. If a person goes to a height equal to radius of Earth from its surface...

    Text Solution

    |

  10. The pressure and volume of a given mass of gas at a given temperature ...

    Text Solution

    |

  11. The ratio of the magnetic field at the centre of a current carrying ci...

    Text Solution

    |

  12. Three long straight conductors are arranged parallel to each other in ...

    Text Solution

    |

  13. The equation of a transverse wave is given by y=10 sin pi (0.01 x -...

    Text Solution

    |

  14. A pendulum is executing simple harmonic motion and its maximum kinet...

    Text Solution

    |

  15. One division on the main scale is 1mm. It has 20 equal divisions on ve...

    Text Solution

    |

  16. In a hydraulic press, radii of connecting pipes, r(1) and r(2) are in ...

    Text Solution

    |

  17. Three thin uniform rods each of mass M and length L and placed along t...

    Text Solution

    |

  18. The rope shown in figure is wound around a cylinder of mass 4 kg and m...

    Text Solution

    |

  19. The luminosity of the Rigel star is 17000 times that of the sun. Assum...

    Text Solution

    |

  20. 400 c c volume of gas having gamma=5/2 is suddenly compressed to 100 c...

    Text Solution

    |