Home
Class 12
PHYSICS
What factors govern the direction of e.m...

What factors govern the direction of e.m.f. ?

Text Solution

Verified by Experts

The direction of induced emfis always opposite to the cause which produces it.
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC INDUCTION

    BETTER CHOICE PUBLICATION|Exercise SHORT ANSWER TYPE QUESTIONS|10 Videos

  • ELECTROMAGNETIC INDUCTION

    BETTER CHOICE PUBLICATION|Exercise SHORT ANSWERTYPE QUESTIONS|13 Videos

  • ELECTRICAL MEASUREMENTS

    BETTER CHOICE PUBLICATION|Exercise Most Expected Questions|7 Videos

  • ELECTROMAGNETIC WAVES

    BETTER CHOICE PUBLICATION|Exercise NUMERICALS|4 Videos

Similar Questions

Explore conceptually related problems

What factors govern the magnitude of the e.m.f. induced in an electric circuit.

What are the factors which govern the development in a plant?

State the factors on which induced e.m.f. in a coil rotating in a uniform magnetic field depends.

What is the difference between e.m.f. and potential diffrence?

What is the relationship between e.m.f. and magnetic flux?

What is phase difference between the e.m.f. and current is an a.c. circuit contains a pure capacitance?

BETTER CHOICE PUBLICATION-ELECTROMAGNETIC INDUCTION-NUMERICAL PROBLEMS
  1. What factors govern the direction of e.m.f. ?

    Text Solution

    |

  2. A magnetic field of 2xx10^-2T acts at right angles to a coil of area 1...

    Text Solution

    |

  3. A small piece of metal wire is dragged across the gap between this ...

    Text Solution

    |

  4. A copper rod of length 2 m fixed at one end is rotating with an angula...

    Text Solution

    |

  5. A brass rod of length 3.0 m fixed at one end is rotating with angula...

    Text Solution

    |

  6. A silver rod of length one metre fixed at one end is rotating with ang...

    Text Solution

    |

  7. An e.m.f. of 250 muV is induced in a coil, when current in it changes ...

    Text Solution

    |

  8. A wire of length 0.1 m moves with a speed of 10 "m/s" perpendicular to...

    Text Solution

    |

  9. A coil of 100 turns and area 200 "cm"^(2) is placed at right angles to...

    Text Solution

    |

  10. The magnetic flux passing through a coil changes from 6 xx 10^(-3)wb t...

    Text Solution

    |

  11. The magnetic flux passing through a coil changes from 5 xx 10^(-2) w...

    Text Solution

    |

  12. The magnetic flux through a coil changes from 4 xx 10^(-2) wb to 6 xx ...

    Text Solution

    |

  13. A magnetic ifeld 2 xx 10^(-2)"wbm"^(-2) is acting at right angle to a...

    Text Solution

    |

  14. A magnetic field of 4 xx 10^(-4)"wbm"^(-2) is acting at right angle to...

    Text Solution

    |

  15. A magnetic field 5 xx 10^(-4)"wbm"^(-2) is acting at right angle to a...

    Text Solution

    |

  16. A magnetic flux of 5 microweber is linked with a coil when a current o...

    Text Solution

    |

  17. A magnetic flux of 5 microweber is linked with a coil when a current o...

    Text Solution

    |

  18. The magnetic flux threading a coil changes from to 12x10(-3) Wb to 6x1...

    Text Solution

    |

  19. What will be the coefficient of mutual inductance of a pair of coil if...

    Text Solution

    |

  20. A wire is cut across a flux of 0.2x10(-2) weber in 0.12 seconds. What ...

    Text Solution

    |

  21. A railway track running North South has two parallel rails 1.0m apart....

    Text Solution

    |