Magnetism

IIT-JEE · Class 12 · Physics

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What’s covered

topics
- Magnetic Field
  - concept of magnetic field
  - magnetic field lines
- Force on a Moving Charge
  - magnetic force in a magnetic field
  - dependence on charge velocity and angle
  - direction of the force
- Motion of a Charged Particle
  - motion in a uniform magnetic field
  - helical motion
  - motion in combined electric and magnetic fields
  - velocity selector
- Cyclotron
  - principle
  - construction and working
  - cyclotron frequency
- Force on a Current-Carrying Conductor
  - force on a straight conductor in a magnetic field
- Force Between Parallel Currents
  - definition of the ampere
- Torque on a Current Loop
  - magnetic dipole moment
  - torque in a uniform field
  - potential energy
- Biot-Savart Law
  - magnetic field due to a current element
  - field due to a straight current-carrying wire
  - field due to a circular current loop on its axis
  - field at the centre of an arc
- Magnetic Dipole
  - current loop as a magnetic dipole
  - magnetic moment
- Ampere's Circuital Law
  - statement and guidelines for applying
  - magnetic induction due to a cylindrical wire
  - due to a hollow cylindrical wire
  - due to a large and thick current-carrying sheet
- Solenoid and Toroid
  - magnetic field of a solenoid
  - magnetic field of a toroid
- Bar Magnet
  - properties and strength of a bar magnet
- Magnetic Field of a Magnet
  - magnetic field lines
  - Coulomb's law of force between magnetic poles
  - a current coil and atom as a magnetic dipole
  - field on the axial and equatorial lines
  - field due to a short magnetic dipole
- Torque and Energy
  - torque on a bar magnet in a magnetic field
  - potential energy of a bar magnet
- Earth's Magnetism
  - magnetic elements of the earth
  - neutral point
  - finding magnetic moment of a bar
- Tangent Law
  - tangent galvanometer
  - deflection magnetometer
  - vibration magnetometer
- Magnetic Properties of Materials
  - intensity of magnetization
  - magnetic intensity
  - total magnetic field
  - magnetic susceptibility and permeability
  - magnetic flux
- Classification of Materials
  - diamagnetic paramagnetic and ferromagnetic substances
  - paramagnetism on electron theory
  - ferromagnetism
- Hysteresis
  - hysteresis loop
  - soft and hard magnetic materials