Home
Class 12
PHYSICS
The primary and secondary coils of a tra...

The primary and secondary coils of a transmformer have `50` and `1500` turns respectively. If the magnetic flux `phi` linked with the primary coil is given by `phi=phi_(0)+4t`, where `phi` is in weber, `t` is time in second and `phi_(0)` is a constant, the output voltage across the secondary coil is

A

120 volts

B

220 volts

C

30 volts

D

90 volts

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC INDUCTION

    NARAYNA|Exercise EXERCISE-4|16 Videos

  • ELECTROMAGNETIC INDUCTION

    NARAYNA|Exercise ASSERTION & REASON|6 Videos

  • ELECTROMAGNETIC INDUCTION

    NARAYNA|Exercise EXERCISE-2 (H.W)|16 Videos

  • ELECTRO MAGNETIC WAVES

    NARAYNA|Exercise LEVEL-II(H.W)|14 Videos

  • ELECTROMAGNETIC WAVES

    NARAYNA|Exercise EXERCISE -4|15 Videos

Similar Questions

Explore conceptually related problems

The number of turns in primary and secondary coils of a transformer is 50 and 200, respectively. If the current in the primary coil is 4 A, then current in the secondary coil is

The magnetic flux linked with a coil varies with time t as phi=4t^(2)-12t+7 where phi is in weber and tin second.The induced current is zero at time t equals to

The magnetic flux linked with a coil is given by phi=5t^(2)+3t+2 What is the e.m.f. Induced in the coil in the third second?

The magnetic flux linked with a coil is phi and the emf induced in it is e .

Magneic flux linked with a coil is phi=5t^(2)+2t+3, where t is in sec and phi is in weber. At time t=1 s, the value of induced emf (in V) is

NARAYNA-ELECTROMAGNETIC INDUCTION-EXERCISE-3
  1. The core of any transformer is laminated so as to

    Text Solution

    |

  2. A transistor -oscillator using a resonant circuit with an inductor L (...

    Text Solution

    |

  3. The primary and secondary coils of a transmformer have 50 and 1500 tur...

    Text Solution

    |

  4. A transformer is used to light a 100 W and 110 V lamp from a 220V main...

    Text Solution

    |

  5. What is the value of inductance L for which the current is a maximum i...

    Text Solution

    |

  6. The primary and secondary coils of a transmformer have 50 and 1500 tur...

    Text Solution

    |

  7. A long solenoid has 500 turns. When a current of 2A is passed through ...

    Text Solution

    |

  8. A circular disc of radius 0.2 m is placed in a uniform magnetic fied...

    Text Solution

    |

  9. A long solenoid has 500 turns. When a current of 2 A is passed through...

    Text Solution

    |

  10. A conducting circular loop is placed in a uniform magnetic field 0.04T...

    Text Solution

    |

  11. A rectangular, a square , a circular and an elliptical loop, all in th...

    Text Solution

    |

  12. Which of the following figure correctly depicts the Lenz’s law. The ar...

    Text Solution

    |

  13. A conducting circular loop is placed in a uniform magnetic field, B=0....

    Text Solution

    |

  14. A coil has resistance 30 ohm and inductive reactance 20 ohm at 50 Hz f...

    Text Solution

    |

  15. The current i in a coil varies with time as shown in the figure. The v...

    Text Solution

    |

  16. The current (I) in the inductance is varying with time according to th...

    Text Solution

    |

  17. A coil of resistance 400Omega is placed in a magnetic field. If the ma...

    Text Solution

    |

  18. A wire loop is rotated in magneitc field. The frequency of change of d...

    Text Solution

    |

  19. A thin semicircular conducting ring (PQR) of radius r is falling with ...

    Text Solution

    |

  20. An electron moves on a straight line path XY as shown. The abcd is a a...

    Text Solution

    |