Home
Class 12
PHYSICS
A horizontal straight wire 10 m long ext...

A horizontal straight wire 10 m long extending from east to west is falling with a speed of `5.0 ms^(-1)` at right angles to the horizontal component of the Earth's magnetic field `0.30 xx10^(-4) Wb " "m^(-2)`.
(c ) Which end of the wire is at the higher electrical potential ?

Text Solution

Verified by Experts

The east end will be at a higher electrical potential (-ve potential). The conventional current flowes from `+ve underset(("West"))` end to `-ve underset(("East"))` end of the wire.
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC INDUCTION

    SUBHASH PUBLICATION|Exercise FIVE MARKS QUESTIONS WITH ANSWERS|4 Videos
  • ELECTRIC CHARGES AND FIELDS

    SUBHASH PUBLICATION|Exercise NUMERICALS WITH SOLUTIONS|21 Videos
  • ELECTROMAGNETIC WAVES

    SUBHASH PUBLICATION|Exercise ONE MARK QUESTIONS WITH ANSWERS|36 Videos

Similar Questions

Explore conceptually related problems

A horizontal straight wire 10 m long extending from east to west is falling with a speed of 5.0 ms^(-1) at right angles to the horizontal component of the Earth's magnetic field 0.30 xx10^(-4) Wb " "m^(-2) . (a) What is the instantaneous value of the emf induced in the wire ?

A train is moving towards north with a speed of 180 kilometer per hour. If the vertical component of the earth's magnetic field is 0.2 xx 10^(-4)T , the e.m.f induced in the axis 1.5m long is

A train is moving towards north with a speed of 180 kilometre per hour. If the vertical component of the earth’s magnetic field is 0.2 xx 10^-4 T , the emf induced in the axle 1.5 m long is

A conductor of length 10 cm is moved parallel to itself with a speed of 10 m/s at right angle to a uniform magnetic field of 10^(-4)"wb"//m^(2) . What is the e.m.f. induced in it?

The value of horizontal component of earths magnetic field at a place is 0.35 xx 10^-4 tesla. If the angle of dip is 60^@ , the value of vertical component of earths magnetic field is about :

SUBHASH PUBLICATION-ELECTROMAGNETIC INDUCTION-NUMERICALS WITH SOLUTIONS
  1. Two coils wound on the same iron rod so that the flux generated by one...

    Text Solution

    |

  2. A pair of adjacent coils have a mutual indutance of 0.25 H . If the cu...

    Text Solution

    |

  3. A solenoid 0.70 m in length and of 2100 turns has a radius 4.5xx10^(-2...

    Text Solution

    |

  4. A solenoid having a core of cross - section 4xx10^(-4) m^2 , half air ...

    Text Solution

    |

  5. The current in a coil of 20 mH changes from 2.5 A to 3A to in 1/(100) ...

    Text Solution

    |

  6. Current in a coil changes from 4A to 0A in 0.1 s. If the average emf i...

    Text Solution

    |

  7. Calculate the self inductance of a solenoid of length 0.30 m containin...

    Text Solution

    |

  8. Calculate the induced emf in the solenoid , if the current decreases a...

    Text Solution

    |

  9. A small dc motor operating at 200 V draws a current of 5.0 A at its fu...

    Text Solution

    |

  10. Calculate the equivalent inductance between A and B from the following...

    Text Solution

    |

  11. A square metal wire loop of side 0.10 m and resistance 1 Omega is move...

    Text Solution

    |

  12. A long solenoid with 15 turns per cm has a small loop of area 2.0 cm^2...

    Text Solution

    |

  13. A rectangular wire loop of sides 8 cm and 2 cm with a small cut is mo...

    Text Solution

    |

  14. A rectangular wire loop of sides 8 cm and 2 cm with a small cut is mo...

    Text Solution

    |

  15. A circular coil of radius 8.0 cm and 20 turns, is rotated about its ve...

    Text Solution

    |

  16. A horizontal straight wire 10 m long extending from east to west is fa...

    Text Solution

    |

  17. A horizontal straight wire 10 m long extending from east to west is fa...

    Text Solution

    |

  18. A horizontal straight wire 10 m long extending from east to west is fa...

    Text Solution

    |

  19. An air cored solenoid with length 30 cm , area of cross section 25 cm ...

    Text Solution

    |