Difference between Permanent Magnet and Electromagnet
The basic concept of magnetism is about orbital and spin motion of electrons and how they electrons behave with other electrons. There are different types of magnetism and these types depend upon how materials respond to magnetic fields. Permanent magnet is a special type of magnet it has ability that it continues to shows the magnetism either it is in magnetic field or out of magnetic field. The electromagnet is generally like a iron core only and by passing current surrounding the iron core made it electromagnet.
Permanent Magnet |
Electromagnet |
1) Permanent magnet shows magnetism without applying magnetic field as it has special ability.
2) Permanent magnet has weaker magnetic forces as compared to electromagnet. 3) Permanent magnet can keep their magnetism property for long time until it gets demagnetize by other factors. 4) The magnitude of the permanent magnet can be increased or decreased by changing the current supply. 5) Permanent magnet is difficult to handle and hard to use. 6) The permanent magnet has high coercivity. 7) The permanent magnets are made up from ferromagnetic materials. 8) The permanent magnets are used in air conditioners, washing machine, etc. 9) Example: Ferrites. |
1) Electromagnet needs continues electric current to show the magnetism.
2) Electromagnets has stronger magnetic field as it is controlled by the electric field. 3) Electromagnet cannot keep their magnetism for long time because it is a temporary magnet. 4) The magnitude of the electromagnet cannot be increased or decreased by changing current supply. 5) Electromagnets are easy to handle and soft to use. 6) Electromagnet has low coercivity. 7) Electromagnets are made up from iron core and electric current. 8) Electromagnets are used in power drills, hairdryers, etc. 9) Example: solenoid. |