Home
Class 12
PHYSICS
A compass needle whose magnetic moment i...

A compass needle whose magnetic moment is `60Am^2` points geographic north at a certain place where `H=40muT`. The compass needle experience a torque of `1*2xx10^-3N-m`. What is the declination at the place?

Text Solution

Verified by Experts

`30^@`
Promotional Banner

Topper's Solved these Questions

  • MAGNETISM AND MATTER

    MODERN PUBLICATION|Exercise CONCEPTUAL QUESTIONS|30 Videos
  • MAGNETISM AND MATTER

    MODERN PUBLICATION|Exercise TOUGH AND TRICKY PROBLEM|5 Videos
  • MAGNETISM AND MATTER

    MODERN PUBLICATION|Exercise CHAPTER PRACTICE TEST FOR BOARD EXAMINATION|16 Videos
  • ELECTROSTATIC POTENTIAL AND CAPACITANCE

    MODERN PUBLICATION|Exercise Chapter Practice Test|9 Videos
  • MOVING CHARGES AND MAGNETISM

    MODERN PUBLICATION|Exercise CHAPTER PRACTICE TEST|13 Videos

Similar Questions

Explore conceptually related problems

A compass needle whose magnetic moment is 60Am^2 pointing geographic north at a certain place where horizontal component of earth's magnetic field is 40muWb//m^2 experiences a torque of 1*2xx10^-3Nm . What is the declination of the place?

A compass needle whose magnetic moment is 60Am^2 pointing geograhic north at a certain place, where the horizontal component of earth's magnetic field is 40muWbm^-2 experiences a torque 1*2xx10^-3Nm . What is the declination of the place?

A compass needle whose magnetic moment is 60Am^2 pointing geographic north at a certain place, where the horizontal component of earth's magnetic field is 40mu Wb//m^2 , experience a torque 1*2xx10^-3Nm . What is the declination of the place?

A compass needle whose magnetic moment is 60 Am^(2) , is directed towards geographical north at any place experiencing moment of force of 1.2 x× 10^(–3) Nm. At that place the horizontal component of earth field is 40 micro W//m^(2) . What is the value of dip angle at that place?

A compass needle of magnetic moment 50 Am^2 experiences a torque of 1.3 xx 10^(-3) Nm when pointing towards geographical north at a certain place where horizontal component of Earth's magnetic field is 30 mu Wb//m^2 . What is the declination of the place?

A bar magnet of magnetic moment 3.0 A-m^(2) is placed in a uniform magnetic induction field of 2xx10^(-5)T . If each pole of the magnet experiences a force of 6xx10^(-4)N , the length of the magnet is

A bar magnet of magnetic mament 3 Am^(2) is placed in a uniform magnetic induction of 2xx10^(-2) T experiences a troque of 25xx10^(-6) N-m what is its poles strenght if the imagnetic length of the magnet is 5 cm ?

A bar magnet placed in a uniform magnetic field of strength 0*3T with its axis at 30^@ to the field experiences a torque of 0*06N-m . What is the magnetic moment of the bar magnet?

MODERN PUBLICATION-MAGNETISM AND MATTER-PRACTICE PROBLEM
  1. A bar magnet of length 10cm is placed in the magnetic meridian with it...

    Text Solution

    |

  2. A short bar magnet of magnetic moment 0*9JT^-1 is placed with its axis...

    Text Solution

    |

  3. A short bar magnet placed with its axis at 30^(@) with an external fie...

    Text Solution

    |

  4. A magnetic needle has magnetic moment of 6*7xx10^-2Am^2 and moment of ...

    Text Solution

    |

  5. Two magnets of magnetic moments M and sqrt3M are joined to form a cros...

    Text Solution

    |

  6. The earth's magnetic field at the equator is approximately 0*4G, Estim...

    Text Solution

    |

  7. A bar magnet is suspended in a region of earth's magnetic field such t...

    Text Solution

    |

  8. Two bar magnets of magnetic moment M and (3M)/(5) are kept in a regi...

    Text Solution

    |

  9. For a place, the true value of angle of dip is 30^@ . Find the appare...

    Text Solution

    |

  10. A freely suspended bar magnet makes an angle of 60^@ with the horizon...

    Text Solution

    |

  11. In the magnetic meridian of a certain place, the horizontal component ...

    Text Solution

    |

  12. For a place, horizontal component of the earth's magnetic magnetic fie...

    Text Solution

    |

  13. A compass needle whose magnetic moment is 60Am^2 points geographic nor...

    Text Solution

    |

  14. A short bar magnet is placed with its north pole pointing north. The n...

    Text Solution

    |

  15. A 10 cm long bar magnet of magnetic moment 1.34 Am2 is placed in the m...

    Text Solution

    |

  16. A short bar magnet is placed with its north pole pointing north. The n...

    Text Solution

    |

  17. The magnetic moment of an electron of charge e moving in a circular ...

    Text Solution

    |

  18. A magnetic field of 1600Am^-1 produces a magnetic flux of 2*4xx10^-5 w...

    Text Solution

    |

  19. Find the amount of current required to demagnetise a permanent magnet ...

    Text Solution

    |

  20. A domain in ferromagnetic iron is in the form of a cube of side length...

    Text Solution

    |