Electric field and magnetic field pdf files

Electric and magnetic fields the static electric field. Any device that uses electric current has a magnetic field. Relationship between the electric field and magnetic field amplitudes of a harmonic emwave. Electric power, telecommunication, radio and television, and a wide variety. Those poles are places where our planets field lines come together. Electromagnetic em waves electric and magnetic fields. Pdf study on origin of charge, current, electric field and.

The science of electricity and magnetism is the foundation for the modern technological civilisation. The power system and health electric and magnetic fields. Relationship between the electric field and magnetic field. If you place an object in a magnetic field, it will be affected, and the effect will happen along field lines. Phy2061 enriched physics 2 lecture notes magnetic fields d.

Field lines converge or come together at the poles. The main aim here is not too teach you all the gory details of. Pdf in the history of physics, great achievements have been made in. Appendix h electric and magnetic fields psc overview. In what follows i will present some key experimental facts about electric and magnetic fields. Unlike electric fields, magnetic fields are not reduced by trees, fences or buildings. We learned in the previous sections that e and b selfsustain each. Sir charles oatley electric and magnetic fields an introduction cambridge university press 1976 acrobat 7 pdf 51. Magnetic poles are the points where the magnetic field lines begin and end. Em 93 electric fields and flux free pdf file sharing. Pdf hermann minkowski in 1908 defined electric and magnetic fields as the tensorial concomitants of timelike body, ie by means of. Dipole in an electric field potential energy torque of an electric dipole. Pdf electric field and magnetic field in a moving reference system. The wiring that runs through floors, walls, and ceilings is also a source of magnetic fields when electricity is used see table 1.