Magnetism Concepts

   Monday, August 10, 2020   

Magnetism Concepts include all Definitions, Laws, Diagrams, Rules, Examples, Results etc.

Page 1

Describe the results of the Oersted experiment | Effect of Current on a Compass Needle | Magnetic domain | Weber's Theory of Magnetism | Permanent Magnet | Permanent and Temporary magnets | Magnetic field | Intensity of Magnetic field | Magnetic field | Arrangement of iron fillings around a bar magnet

Page 2

Neutral points in bar magnet | Magnetic lines of bar magnet | Properties - Magnetic lines of force | Properties of magnetic fields of lines | Example - Magnetic filed strength due to a bar magnet | Magnetic Field strength due to bar magnet | Magnetic field follows superposition principle | The net magnetic flux through a closed surface is zero | Coulomb's Law of magnetism for force between magnetic poles | Calculate magnetic induction at a point along the axis of a bar magnet

Page 3

Calculate magnetic induction at a point along the equator of a bar magnet | Lorentz force | Fleming's left hand rule | Net force on a moving electric charge | Energy of a charged particle moving in a magnetic field | Motion of a particle in a magnetic field | Aurora Boreails | Motion of charged particle in combined electric and magnetic fields | Pitch of a hellical path of a particle moving in a magnetic field | Radius of curvature of a particle moving in a magnetic field | Example of motion of electron in external electric field | Motion of electron in external electric and magnetic field

Page 4

Deflection of electron due to electric field | Example of motion of electron in external magnetic field | Deflection of electron due to magnetic field | Biot-Savart's Law | Comparison between Biot-Savart's Law and Coulomb's Law | Magnetic field by integrating elemental current carrying sections | Magnetic field due to a finite straight current carrying wire | Magnetic field due to current carrying straight wire | Magnetic field due to different finite wire geometric configurations | Right hand rule | Right Hand Palm Rule | Magnetic field due to an infinitely long straight current carrying wire

Page 5

Magnetic field inside and outside a long straight current carrying wire | Magnetic field due to infinite current carrying sheet | Calculate the magnitude of magnetic induction at a point on the axis at a distance from the centre of a current carrying coil | Magnetic field due to a circular loop | Magnetic field on the axis of a current carrying circular loop | Magnetic field at the centre of a circular current carrying loop | Magnetic Field due to various geometric configuration of circular loops | Magnetic field due to concentric current carrying coils

Page 6

Magnetic field due to concentric current carrying straight wires | Magnetic field due to an infinitely long cylindrical cable with current density varying with radius | Magnetic field due to straight current carrying wires and loops | Magnetic field due to more than one current carrying wires | Magnetic field due to a long straight current carrying wire in a medium other than air | Magnetic field due to a moving ring with uniform charge density | Magnetic compass | Directions Using a Magnet

Page 7

Compass needle at the poles | Dynamo effect | Earth as a magnetic dipole | Earth's magnetic field and dipole moment | Define and discuss terms related to magnet in earth's magnetic field | Magnetic Meridian | Elements of Earth's Magnetic Field | Geographic and magnetic meridian | Magnetic declination | Angle of dip or inclination | Horizontal component of earth's magnetic field | Vertical component of earth's magnetic field

Page 8

Define Magnetic length and its relation with geometric length | Magnetometer | Ampere's circuital law | Amperian loop | Force on a wire in magnetic field | Force acting on various geometrical configurations of current carrying conductors in uniform magnetic field | Torque acting on a loop in a uniform magnetic field | Force on current carrying conductor in magnetic field | Analogy between a bar magnet and a solenoid |Equivalence between magnetic dipole and a solenoid | Magnetic field lines of a bar magnet, current carrying finite solenoid and an electric dipole

Page 9

Analogy between electric dipole and magnetic dipole | Solenoid | Terrestrial Magnetism | Magnetic field due to a solenoid | Magnetic field due to a finite solenoid | Axial magnetic field of a finite solenoid | Magnetic fields of finite and infinite solenoid | Toroid

Page 10

Magnetic field due to a toroid | Number of turns in a toroidal coil | Observe that parallel currents repel in a solenoid and toroid | Strength of electromagnet | Cyclotron | Cyclotron frequency | Uses of cyclotron | Describe the limitations of cyclotron | Force between two parallel current carrying wires. | Force between parallel current carrying sheets

Page 11

Current carrying conductors in magnetic field involving Newton's Laws | Potential energy of a magnet in a magnetic field | Potential energy of a current loop in a magnetic field | Magnetic dipole moment of a revolving electron | Gauss Law | Magnetic dipole moment of a current loop in a magnetic field | Gyromagnetic ratio | Orbital and spin magnetic moment | Comparison of magnetic fields in axial position and equatorial position | Magnetic dipole moment of a rotating disc with given surface charge

Page 12

Magnetic dipole moment of a rotating sphere with given volume charge | Circular current loop as a magnetic dipole | Equivalence between current carrying circular coil and magnetic dipole | Torque on a bar magnet placed in an uniform magnetic field | The magnitude of magnetic induction at a point along the axis for short magnetic dipole | Induced magnetism | Magnetic induction | Intensity of magnetisation | Magnetic intensity or magnetic field strength | Magnetic permeability and relative magnetic permeability

Page 13

Magnetic susceptibility | Relative permeability and magnetic susceptibility | Magnetic moment and pole strength of a permanent magnet | Bohr magneton | Permeability and permittivity of free space | Energy density in a magnetic field | Torque balance in magnetic field | Problems on changing magnetic moment | SHM of a bar magnet in a uniform magnetic field | Construction of a moving coil galvanometer

Page 14

Working principle of the moving coil galvanometer | Galvanometer | Deflection obtained in moving coil galvanometer | Shunt resistance | Current sensitivity | Voltage sensitivity | Describe the sensitivity of a moving coil galvanometer and how can it be increased | Electric Bell | Electromagnet | Moving charges or current produce magnetic field

Page 15

Paramagnetic, diamagnetic and ferromagnetic materials | Meissner effect for superconductors | Critical temperature for material to become superconductor | Diamagnetic materials | Paramagnetic materials | Ferromagnetic materials | Curie's Law | Curie temperature | Hysterisis

Page 16

Retentivity and coercivity | Hysteresis loss | Selection of magnetic materials for a specific purpose | Hard and soft ferromagnetic materials | Soft iron andnSteel