Home
Class 12
PHYSICS
n an induction coil, the secondary e.m.f...

n an induction coil, the secondary e.m.f. is

A

zero during break of the circuit

B

very high during make of the circuit

C

very high during the break of the circuit

D

zero during make of the circuit.

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • TEXTUAL QUESTIONS

    MODERN PUBLICATION|Exercise EXERCISE|507 Videos
  • STRUCTURE OF NUCLEUS

    MODERN PUBLICATION|Exercise EXERCISE|47 Videos
  • TEXUAL QUESTIONS

    MODERN PUBLICATION|Exercise EXERCISE|195 Videos

Similar Questions

Explore conceptually related problems

In an induction coil, the coefficient of mutual induction is 4 H. If a current of 5 A in primary coil is cut-off in 1/1500 s, the emf at the terminals of secondary coil will be

State laws of electromagnetic induction. A rectangular loop of N turns of length 'a' and width 'b' is rotated with an angular velocity omega in a uniform magnetic field of induction B. Show that induced e.m.f. is given by e = omega N b a B sin omegat

In electromgnetic induction, the induced e.m.f. in a coil is independent of

If the coefficient of mutual induction of primary and secondary of an induction coil is 6 henry and a current of 5 ampere is cut off in 2xx10^-4 s, ind the induced e.m.f. in the secondary coil.

At which position of the rotating coil in the magnetic field, the induced e.m.f. is maximum?

State the principle on which induction coil is construced.

In electromagnetic induction, the induce 1 emf in a coil is independent of:

MODERN PUBLICATION-TEXTUAL QUESTIONS-EXERCISE
  1. n an induction coil, the secondary e.m.f. is

    Text Solution

    |

  2. For current entering at A, the electric field E(r at a distance r form...

    Text Solution

    |

  3. A material 'B' has twice the specific resistance of 'A'. A circular wi...

    Text Solution

    |

  4. The length of a given cylindrical wire is increased by 100%. Due to th...

    Text Solution

    |

  5. If a wire is stretched to make it 0.1% longer, its resistance of will

    Text Solution

    |

  6. An electric current is passed through a circuit containing two wires o...

    Text Solution

    |

  7. By increasing the temperature, the specific resistance of a conductor ...

    Text Solution

    |

  8. A strip of copper another of germanium are cooled from room temperatur...

    Text Solution

    |

  9. The difference in the variation o resistance with temperature in a met...

    Text Solution

    |

  10. The thermistors are usually made of

    Text Solution

    |

  11. The resistance of a bulb filmanet is 100Omega at a temperature of 100^...

    Text Solution

    |

  12. The resistance of a wire is 5 ohm at 50^@C and 6 ohm at 100^@C. The re...

    Text Solution

    |

  13. The resistance of hot tungsten filament is about 10 times the cold res...

    Text Solution

    |

  14. An electric bulb is rated 220 V and 100 W. when it is operated on 110 ...

    Text Solution

    |

  15. An 220 volt-1000 watt bulb is connected across a 110 volt mains supply...

    Text Solution

    |

  16. A heater coil is cut into two equal parts and only one part is now use...

    Text Solution

    |

  17. If in the circuit, power dissipation is 150 W, then R is

    Text Solution

    |

  18. A wire when connected to 220 V mains supply has power dissipation P1. ...

    Text Solution

    |

  19. The resistance of the series combination of two resistances is S. WHen...

    Text Solution

    |

  20. A 3 V battery with negligible internal resistance is connected in a ci...

    Text Solution

    |

  21. What will be the value of current through 2Omega resistance for the ci...

    Text Solution

    |