2nd year of post-compulsory secondary education
Magnetic field
José Luis San Emeterio
 Magn.  
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Objectives
  • To remember the qualitative properties of magnetic phenomena studied in previous years.

  • To understand the effects of the magnetic field on charged particles and currents and to understand some of the applications of these forces.

  • To know how to measure the magnetic field produced in simple conditions and to understand natural magnetism.

  • To understand the phenomenon of magnetic self-induction, its application to the creation of alternating current and its importance in relation to some components of alternating current circuits.

Background information
Natural magnets
Lines of force
Magnets and currents
Conclusions
The effects of the magnetic field
on a charged particle
on a straight cable
on a loop
Conclusions
The creation of magnetic fields
by a charged particle
by a rectilinear current
by a coil
An explanation of natural magnetism
Conclusions
Induced currents
Magnetic flux
The laws of Faraday and Lenz
Self-induction
Conclusions
Alternating current
The generation of alternating currents
A circuit of alternating current
Conclusions
Evaluation