Home
Class 12
PHYSICS
A paramagnetic sample shows a net magnet...

A paramagnetic sample shows a net magnetism of `8Am^-1` when placed in an external magnetic field of 0.6 T at a temperature of 4K. When the same sample is placed in the external magnetic field of 0.2 T at a temperature of 16 K, the magnetisation will be

A

`(32)/(3) A //m`

B

`(2)/(3) A//m`

C

`6 A //m `

D

`2.4 A//m`

Text Solution

Verified by Experts

The correct Answer is:
B
Doubtnut Promotions Banner Mobile Dark
|

Similar Questions

Explore conceptually related problems

Draw magnetic field lines, when a diamagnetic substance is placed in an external magnetic field

Draw magnetic field lines, when a paramagnetic substance is placed in an external magnetic field.

Knowledge Check

  • When an electron is placed in a magnetic field, the velocity of electron

    A
    increases
    B
    depend on the field strength
    C
    decreases
    D
    independent of the field strength
  • Similar Questions

    Explore conceptually related problems

    A ferromagnetic substance becomes a permanent magnet when it is placed in a magnetic field because.

    When will a magnet in an external magnetic field be in unstable equilibrium?

    What happens when a diamagnetic substance is placed in a varying magnetic field?

    A sample of paramagnetic salt contains 2.0 xx 10^24 atomic dipoles each of dipole moment 1.5 xx 10^-23 JT^-1 . The sample is placed under a homogeneous magnetic field of 0.64 T, and cooled to a temperature of 4.2 K. The degree of magnetic saturation achieved is equal to 15%. What is the total dipole moment of the sample for a magnetic field of 0.98 T and a temperature of 2.8 K? (Assume Curie’s law)

    A short bar magnet placed with its axis at 30^@ with a unifrom external magnetic field of 0.16 T experience a torque of magnitude 0.032 J. Estimate the magnetic moment of the magnet.

    A bar magnet of magnetic moment 6J/T is aligned at 60^@ with a uniform external magnetic field of 0.44 T. Calculate the work done in turning the magnet to align its magnet moment normal to the magnetic field.

    What happens when a current-carrying conductor is placed in a magnetic field ?