Home
Class 12
PHYSICS
A student records the following data for...

A student records the following data for the magnitudes (B) of the magnetic field at axial points at different distances x from the centre of a circular coil of radius 'a' carrying a current I. Verify (for any two) that these observations are in good agreement with the expected theoretical variation of B with x.

Text Solution

Verified by Experts

Magnetic field (B) is given`B = (mu_0)/(4pi) = (2M)/(x^2)`
Promotional Banner

Topper's Solved these Questions

  • MOVING CHARGES AND MAGNETISM

    NEW JOYTHI PUBLICATION|Exercise CONTINUOUS EVALUATION|1 Videos
  • MOVING CHARGES AND MAGNETISM

    NEW JOYTHI PUBLICATION|Exercise CONTINUOUS EVALUATION (ASSIGNMENT)|4 Videos
  • MOVING CHARGES AND MAGNETISM

    NEW JOYTHI PUBLICATION|Exercise PRACTICE PROBLEMS FOR SELF ASSESSMENT|20 Videos
  • MAGNETISM AND MATTER

    NEW JOYTHI PUBLICATION|Exercise COMPETITIVE EXAM CORNER|13 Videos
  • NUCLEI

    NEW JOYTHI PUBLICATION|Exercise COMPETITIVE EXAM CORNER|23 Videos

Similar Questions

Explore conceptually related problems

The magnetic field due to a current carrying circular coil on the axis, at a large distance r from the centre of the coil, varies approximately as ..........

A bar magnet has length 10 cm and pole strength 50 Am. Calculate the magnetic field at a point distance 20 cm from the centre of the magnet . a. on the axial line b. on the equatorial line

The magnetic field at the centre of a circular coil carrying current I-ampere is B. If the coil bent into smaller circular coil of n turns, its magnetic field at the centre is B. The ratio between B’ and B is:

For a circular coil of radias R and N turns carrying current I, the magnitude of the magnetic field at a point on its at a distance x from its centre is given by B=(mu_0 IR^2 N)/(2(x^2+R^2)^(1/2)) a. Show that this reduces to the familar result for field the centre of the coil . ]

A circular coil of 120 turns has a radius of 18 cm and carries a current of 3 A. What is the magnitude of the magnetic field at a point on the axis of the coil at a distance from the centre equal to the radius of the circular coil .

A solenoid of length 10 cm and radius 1 cm contains 200 turns and carries a current of 10 A. Find the magnetic field at a point on the axis at a distance of 10cm from the centre.

A long, straight wire carries a current i. Let B_1 be the magnetic field at a point P at a distance d from the wire. Consider a section of length l of this wire such that the point P lies on a perpendicular bisector of the section. Let B_2 be the magnetic field at this point due to this section only. Find the value of d/l so that B_2 differs from B_1 by 1 %.

Two long, straight wires a and b are 2*0 m apart, perpendicular to the plane of the paper as shown in figure . The wire a carries a current of 9*6 A directed into the plane of the figure,The magnetic field at the point P at a distance of 10/11 m from the wire b is zero. Find (a) the magnitude and direction of the current in b, (b) the magnitude of the magnetic field B at the point s and (c) the force per unit length on the wire b .

NEW JOYTHI PUBLICATION-MOVING CHARGES AND MAGNETISM-EVALUATION QUESTIONS AND ANSWERS
  1. What is the magnetic field along the axis and equatorial line of a bar...

    Text Solution

    |

  2. A current carrying circular loop lies on a smooth horizontal plane. Ca...

    Text Solution

    |

  3. A uniform magnetic field of 3000G is established along the positive z-...

    Text Solution

    |

  4. Describe qualitatively the path of a charged particle moving in a unif...

    Text Solution

    |

  5. A uniform magnetic field of 1.5 T exists in a cylindrical region of ra...

    Text Solution

    |

  6. A straight horizontal conducting rod of length 0.45 m and mass 60 g is...

    Text Solution

    |

  7. A current carrying loop of irregular shape is located in an external m...

    Text Solution

    |

  8. Starting from the expression for the force on a current carrying condu...

    Text Solution

    |

  9. a. What type of particles can be accelerated in a cyclotron? b. Why ...

    Text Solution

    |

  10. In a moving coil galvanometer, a. why is horse-shoe magnet used? ...

    Text Solution

    |

  11. Expression for voltage sensitivity is (theta)/(v) = (NAB)/(CR) a. Wh...

    Text Solution

    |

  12. A moving coil galvanometer can be converted into an ammeter. a. Is t...

    Text Solution

    |

  13. No net force acts on a rectangular loop carrying a steady current when...

    Text Solution

    |

  14. A student records the following data for the magnitudes (B) of the mag...

    Text Solution

    |

  15. What is the magnitude of the induced current in the circular loop KLMN...

    Text Solution

    |

  16. A short bar magnet placed with its axis at 30^@ to a uniform magnetic ...

    Text Solution

    |

  17. In the diagram shown is ciruclar loop carrying current I. show the dir...

    Text Solution

    |

  18. Two long parallel straight wires X and Y separated by a distance of 5 ...

    Text Solution

    |

  19. A galvanometer with a coil of resistance 120 ohm shows full-scale defl...

    Text Solution

    |

  20. Two wires of equal lengths are bent in the form of two loops. One of t...

    Text Solution

    |