Home
Class 12
PHYSICS
If the bar magnet in the above problem i...

If the bar magnet in the above problem is turned around by `180^@`, where will the new null points be located?

Text Solution

AI Generated Solution

To find the new null points when a bar magnet is turned around by 180 degrees, we can follow these steps: ### Step-by-step Solution: 1. **Understand the Initial Setup**: - In the previous problem, we had a bar magnet oriented horizontally with its North pole pointing in a specific direction. The Earth’s magnetic field is also present, which influences the magnetic field created by the bar magnet. 2. **Turn the Bar Magnet**: ...
Promotional Banner

Topper's Solved these Questions

  • MAGNETISM AND MATTER

    NCERT ENGLISH|Exercise Exercise|25 Videos
  • ELECTROSTATIC POTENTIAL AND CAPACITANCE

    NCERT ENGLISH|Exercise Exercise|37 Videos
  • MOVING CHARGES AND MANGNETISM

    NCERT ENGLISH|Exercise Exercise|28 Videos

Similar Questions

Explore conceptually related problems

When the N -pole of a bar magnet points towards the south and S-pole towards the north, the null points are at the

A short bar magnet is placed along N-S direction with N pole pointing north. The neutral points are located 20 cm away from the bar magnet. If B_(H) is the horizontal component of earth's magnetic field then the magnetic field due to the bar magnet at distance of 40 cm along its axis is

A small magnetic needle performs 10 oscillations/minute in the earth's horizontal magnetic field . When a bar magnet is placed near the small magnet in same position , frequency of oscillations becomes 10sqrt2 oscillations/minute . If the bar magnet be turned around end to end , the rate of oscillation of small magnet will become

A short bar magnet placed in a horizontal plane has its axis aligned along the magnetic north south direction. Null points are found on the axis of the magnet at 14cm from the centre of the magnet. The earth's magnetic field at the plane is 0*36G and the angle of dip is zero. What is the total magnetic field on the normal bisector of the magnet at the same distance as the null points (i.e. 14 cm) from the centre of the magnet? (At null points, field due to a magnet is equal and apposite to the horizontal component of earth's magnetic field).

In the meter bridge circuit shown, the null point is obtained at C (AC = x) on the wire AB. If the diameter of the wire AB is doubled, the position of the new null point C' will correspond to

Draw magnetic field lines around a bar magnet.

Draw magnetic field lines around a bar magnet.

A thin bar magnet has dipole moment M . If this is bent in the form of semicircle , then find the new dipole moment .

A compass needle free to turn in a horizontal plane is placed at the centre of a circular coil of 30turns and radius 12cm. The coil is in a vertical plane malting an angle of 45^(@) with the magnetic meridian when the current in the coil is 0.35A, the needle points west to east. Determine the horizontal component of earth's magnetic field at the location.

The time period of oscillation of a bar magnet suspended horizontaliy along the magnetic meridian is T_(0) . If this magnet is replaced by another magnet of the same size and pole strength but with double the mass, the new time period will be

NCERT ENGLISH-MAGNETISM AND MATTER-Exercise
  1. If the solenoid in the above question is free to turn about the vertic...

    Text Solution

    |

  2. A bar magnet of magnetic moment 1.5JT^-1 lies aligned with the directi...

    Text Solution

    |

  3. A closely wound solenoid of 2000 turns and area of cross section 1.6xx...

    Text Solution

    |

  4. A circular coil of 16 turns and radius 10cm carrying a current of 0.75...

    Text Solution

    |

  5. A magnetic needle free to rotate in a vertical plane parallel to the m...

    Text Solution

    |

  6. At a certain location in Africa, compass points 12^@ west of geographi...

    Text Solution

    |

  7. A short bar magnet has a magnetic moment of 0*48JT^-1. Give the direct...

    Text Solution

    |

  8. A short bar magnet placed in a horizontal plane has its axis aligned a...

    Text Solution

    |

  9. If the bar magnet in the above problem is turned around by 180^@, wher...

    Text Solution

    |

  10. A short bar magnet of mangetic moment 5*25xx10^-2JT^-1 is placed with ...

    Text Solution

    |

  11. Answer the following questions: (a) Why does a paramagnetic sample d...

    Text Solution

    |

  12. Answer the following question: (a) Explain qualitatively on the basis ...

    Text Solution

    |

  13. A long straight horizontal cable carries a current of 2.5amp. In the d...

    Text Solution

    |

  14. A telephonic cable at a place has four long straight horizontal wires ...

    Text Solution

    |

  15. A compass needle free to turn in a horizontal plane is placed at the c...

    Text Solution

    |

  16. A magnetic dipole is under the influence of two magnetic fields. The a...

    Text Solution

    |

  17. A monoenergetic (18 keV) electron beam initially in the horizontal dir...

    Text Solution

    |

  18. A sample of paramagnetic salt contains 2xx10^(24) atomic dipoles, each...

    Text Solution

    |

  19. A Rowland ring of mean radius 15 cm has 3500 turns of wire wound on a ...

    Text Solution

    |

  20. The magnetic moment vectors vecmus and vecmul associated with the intr...

    Text Solution

    |