phy

Cards (12)

  • Magnetic field
    • The region around a magnet that is affected by magnetic forces
  • Induced EMF
    Induced in the coil when a bar magnet is pushed in and out of it
  • Electric current can be produced with the help of varying magnetic field without any physical contact of the source of magnetic field and the conductor
  • Electromagnetic induction
    The process by which electricity can produce magnetism
  • Magnetic induction
    The process by which a magnetic substance acquires magnetic properties temporarily due to the presence of a magnet close to it
  • Induced current
    Produced by a changing magnetic field
  • A current can be produced without a battery present in the circuit
  • The current produced by electromagnetic induction
    Is greater when the magnet or coil moves faster, the coil has more turns, or the magnet is stronger
  • How magnetic induction occurs
    It occurs whenever a magnetic field and an electric conductor move relative to one another so the conductor crosses lines of force in the magnetic field
  • Faraday
    One of the world's greatest experimental physicist, known as the father of the electric motor, electric generator, electric transformer, and electrolysis
  • Faraday's law of induction

    Describes how an electric current produces a magnetic field and, conversely, how a changing magnetic field generates an electric current in a conductor
  • The faster the magnetic field changes, the greater the voltage in the circuit will be. The direction of the change in the magnetic field determines the direction of the current