Magnetic Phenomenon and Parameters Quiz

M = χH

χ = μr-1

Diamagnets are very weak non-permanent magnets with magnetic susceptibility close to zero. They are attracted to weak sections of a magnetic field.

<p>In the absence of a magnetic field, there is no atomic dipole in diamagnetic materials.</p> Signup and view all the answers

<p>In the presence of a magnetic field, the atoms in diamagnetic materials become magnetic dipoles aligned opposite to the external field.</p> Signup and view all the answers

<p>The induced field (B) in diamagnetic materials is very small and is in the direction opposite to that of the magnetic field.</p> Signup and view all the answers

<p>Magnetic field strength (H) is a vector representing the intensity of the magnetic field.</p> Signup and view all the answers

<p>Magnetic induction B is a vector representing the resultant magnetic field. It is related to magnetic field strength H by the equation B = µH.</p> Signup and view all the answers

<p>Permeability is a scalar representing the property of the medium through which magnetic lines flow. It relates B and H through the equation B = µH.</p> Signup and view all the answers

<p>The direction of current flow in a closed loop determines the direction of the magnetic field. Clockwise current results in one direction, while anticlockwise results in the opposite direction.</p> Signup and view all the answers

<p>Magnetic field strength (H), magnetic induction (B), and magnetic permeability (µ) are parameters used to describe the magnetic phenomenon.</p> Signup and view all the answers

<p>When a current I passes through a solenoid of length L with N coils, the magnetic field strength H is generated as H = NI/L.</p> Signup and view all the answers

<p>Atomic dipole moments are tied together, affecting each other's movement, leading to a collective behavior.</p> Signup and view all the answers

<p>Atomic dipole moments change gradually in direction from one domain to another.</p> Signup and view all the answers

<p>At saturation magnetization, all dipole moments align in the same direction, forming a single domain.</p> Signup and view all the answers

<p>The B-H curve shows the relationship between magnetic induction (B) and magnetic field strength (H), illustrating hysteresis and material behavior.</p> Signup and view all the answers

<p>Permittivity changes with variations in magnitude and direction of the external magnetic field, requiring a full B-H curve.</p> Signup and view all the answers

<p>It indicates the high magnetic retention capability of the material due to aligned atomic dipole moments.</p> Signup and view all the answers