हिंदी

Draw Magnetic Field Line When a (I) Diamagnetic, (Ii) Paramagnetic Substance is Placed in an External Magnetic Field. Which Magnetic Property Distinguishes this Behaviour of the Field Line Due - Physics

Advertisements
Advertisements

प्रश्न

Draw magnetic field line when a (i) diamagnetic, (ii) paramagnetic substance is placed in an external magnetic field. Which magnetic property distinguishes this behaviour of the field line due to the substances?

उत्तर

(i) The magnetic field lines, when a diamagnetic material is placed in an external magnetic field, can be diagrammatically represented as

(ii) The magnetic field lines, when a paramagnetic material is placed in an external magnetic field, can be diagrammatically represented as

Diamagnetic and paramagnetic materials are distinguished by the magnetic property called magnetic susceptibility. For diamagnetic materials, magnetic susceptibility is negative, whereas for paramagnetic materials, magnetic susceptibility is slightly positive.

shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
2009-2010 (March) Delhi set 3

संबंधित प्रश्न

Distinguish between diamagnetic and paramagnetic substances


The susceptibility of a magnetic material is 0·9853. Identify the type of magnetic material. Draw the modification of the field pattern on keeping a piece of this material in a uniform magnetic field.


Answer in brief.

Discuss the Curie law for paramagnetic material.


The susceptibility of a magnetic material is positive and small. The material is ______.


The magnetic susceptibility of a paramagnetic material at - 73 °C is 0.0075. Its value at -173 °C will be ______.


If a toroid uses bismuth for its core, will the field in the core be (slightly) greater or (slightly) less than when the core is empty?


A Rowland ring of mean radius 15 cm has 3500 turns of wire wound on a ferromagnetic core of relative permeability 800. What is the magnetic field B in the core for a magnetising current of 1.2 A?


Two identical bar magnets are fixed with their centres at a distance d apart. A stationary charge Q is placed at P in between the gap of the two magnets at a distance D from the centre O as shown in the figure. The force on the charge Q is ______.


A long solenoid has 1000 turns per metre and carries a current of 1 A. It has a soft iron core of µr = 1000. The core is heated beyond the Curie temperature, Tc.

  1. The H field in the solenoid is (nearly) unchanged but the B field decreases drastically.
  2. The H and B fields in the solenoid are nearly unchanged.
  3. The magnetisation in the core reverses direction.
  4. The magnetisation in the core diminishes by a factor of about 108.

Magnetic susceptibility for a paramagnetic and diamagnetic materials is respectively ______.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×