what is difference between parmanent magnet and elecromagnet
Answers
A permanent magnet is 'permanent'. An electromagnet is made from a coil of wire which acts as a magnet when an electric current passes through it. Often an electromagnet is wrapped around a core of ferromagnetic material like steel, which enhances the magnetic field produced by the coil.
hyyyyy budy
permanent electromagnet
1.they r permanent magnet they r temporary
2.they r usually made of hard material they r made of soft mate.
3.strength of the m.field line r constant here magnetic field lines r l v varried according to our need
4.poles canot be changed poles can be altered
its enough
may b its hlpful fr u