Q129 / 180 · JIPMER 2019 · Physics

Coercivity and retentivity of soft iron is

A
high coercivity, high retentivity
B
low coercivity, high retentivity
Correct answer
C
low coercivity, low retentivity
D
high coercivity, low retentivity

Solution

Coercivity and retentivity of soft iron is low, because its magnetisation disappears easily on the removal of external magnetising field.

Hence, the correct answer is option: 'C'.

More Magnetic Properties of Matter Questions

A frog can be levitated in magnetic field produced by a current in a vertical solenoid placed below the frog. This is possible because the b2010Magnetic Materials and their Properties
The north pole of a long horizontal bar magnet is being brought closer to a vertical conducting plane along the perpendicular direction. The2008Magnetic Materials and their Properties
If the magnetic dipole moment of an atom of diamagnetic material, paramagnetic material and ferromagnetic material are denoted by , and resp2007Magnetic Materials and their Properties
The turns of a solenoid, designed to provide a given magnetic flux density along its axis, are wound to fill the space between two concentri2017Magnetism and Properties of Magnet
The total charge induced in a conducting loop when it is moved in magnetic field depends on2016Magnetism and Properties of Magnet
A thin bar magnet of length is bent at the mid-point so that the angle between them is . The new length of the magnet is2015Magnetism and Properties of Magnet