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WorksheetsPIS - Unit 3 - Magnetic Properties of Materials - Quiz 2
Total questions: 20
Worksheet time: 20mins
Which is not a type of magnetic materials?
Diamagnetic materials
Paramagnetic materials
Ferromagnetic materials
Electromagnetic materials
Which materials have negative or zero magnetic susceptibility?
Diamagnetic materials
Paramagnetic materials
Ferromagnetic materials
Ferrites
Which materials have permanent magnetic dipole moment?
Diamagnetic materials
Anti ferromagnetic materials
Ferromagnetic materials
Ferrites
By the motion of domain walls, we applied -------------- magnetic field
small
large
zero
none
Which of the following is not a types of energy involved in domain theory?
Exchange energy
Crystal anisotropy energy
Electrostatic energy
Magnetostrictive energy
-------- field are needed to produce magnetic saturation in hard direction.
Zero
Greater
Lower
Medium
Hysteresis curve means
Lagging of M and H behind B
Lagging of H and B behind M
Lagging of M and B behind H
None
In hysteresis loss, the loss of energy is in the form of --------------
heat
magnetic
light
electric
In anti-ferromagnetism, the susceptibility is
large and positive
large and negative
small and positive
small and negative
In ferrites, the spin alignment is
parallel and same magnitude
antiparallel and same magnitude
parallel and different magnitude
antiparallel and different magnitude
Which of the following is the property of soft magnetic materials? Choose more than one option
low coercivity
low hysteresis loss
low permeability
high residual magnetism
------------------- materials are used for recording / reading audio and video signals.
Non magnetic
Dielectric
Magnetic
Superconducting
Auxillary memory is called
Secondary storage device
Primary storage device
temporary storage device
none
The magnetic tape contain ---------------- tracks
7
8
9
10
In GMR sensor, there are ------------- layers altogether in spin valve
4
5
6
7
Magnetism in a material arises due to
spin motion of electron
both orbital and spin motion of electron
orbital motion of electron
nuclear magnetism
Magnetic susceptibility is
Magnetization created by unit electric field
Magnetization created by unit electromagnetic field
Magnetization created by unit magnetic field
polarization created by unit electromagnetic field
Magnetic field is created due to
steady current
static charges
static electron
static car
Example of Paramagnet is
Zinc
Platinum
Gold
Iron
One Bohr Magneton value is
9.27X10-24 A/m2
9.27X10-22 A/m2
9.27X10-20 A/m2
9.27X10-26 A/m2
