Home
Class 12
PHYSICS
A horizontal metal wire is carrying an e...

A horizontal metal wire is carrying an electric current from the north to the south. Using a uniform magnetic field, it is to be prevented from falling under gravity. The direction of this magnetic field should be towards the

A

north

B

south

C

east

D

west

Text Solution

Verified by Experts

The correct Answer is:
C

According to Fleming.s left rule, the direction of magnetic field is towards the east.
Promotional Banner

Topper's Solved these Questions

  • KARNATAKA CET 2009

    KCET PREVIOUS YEAR PAPERS|Exercise PHYSICS|60 Videos
  • KARNATAKA CET 2012

    KCET PREVIOUS YEAR PAPERS|Exercise PHYSICS|60 Videos

Similar Questions

Explore conceptually related problems

The direction of a magnetic field can be determined using

An electron in an electric field is made static and prevented from falling under gravity. Write the equation satisfying the above condition.

A current carrying power line carries current from west to east, the direction of magnetic field 1m above it is

An unsupported horizontal wire is to be prevented from falling under gravity using an external magnetic field. Wire carries current form North to South.The magnetic field should be directed towards.

A metallic pipe carries direct current, correct statement about the existence of magnetic field is

A metallic rod carries direct current correct statement about the existence of magnetic field is :

KCET PREVIOUS YEAR PAPERS-KARNATAKA CET 2010-Physics
  1. A current I is flowing through the loop. The direction of the current ...

    Text Solution

    |

  2. An ideal choke draws a current of 8 A when connected to an AC supply o...

    Text Solution

    |

  3. The spectrum of an oil flame is an example for

    Text Solution

    |

  4. According to Einstein's photoelectric equation the graph of K.E. of th...

    Text Solution

    |

  5. An electron is moving in an orbit of a hydrogen atom from which there ...

    Text Solution

    |

  6. v(1) is the frequency of the series limit of Lyman series, v(2) is te ...

    Text Solution

    |

  7. Assume the graph of specific binding energy versus mass number is as s...

    Text Solution

    |

  8. Pick out the correct statement from the following :

    Text Solution

    |

  9. A radioactive sample S(1) having the activity A(1) has twice the numbe...

    Text Solution

    |

  10. When a neutron is disintegrated to give a beta - particle,

    Text Solution

    |

  11. The forbidden energy gap in Ge in 0.72 eV Given, hc=12400" eV"-Å The m...

    Text Solution

    |

  12. Pick out the statement which is not correct

    Text Solution

    |

  13. In a given direction the intensities of the scattered light by a scatt...

    Text Solution

    |

  14. Indentify the logic operation performed by the circuit given here.

    Text Solution

    |

  15. The de-Broglie wavelength of the electron in the ground state of the h...

    Text Solution

    |

  16. PQ and RS are long parallel conductors separated by certain distance. ...

    Text Solution

    |

  17. An electron enters the space between the plates of a charged capacity ...

    Text Solution

    |

  18. In a series resonant R-L-C circuit, the voltage across R is 100 V and ...

    Text Solution

    |

  19. A capacitor and inductance coil are connected in separate AC ccircuits...

    Text Solution

    |

  20. A horizontal metal wire is carrying an electric current from the north...

    Text Solution

    |