An electromagnet is a type of magnet A magnet is a material or object that produces a magnetic field. This magnetic field is invisible but is responsible for the most notable property of a magnet: a force that pulls on other ferromagnetic materials like iron and attracts or repels other magnets whose magnetic field Magnetic fields surround magnetic materials and electric currents and are detected by the force they exert on other magnetic materials and moving electric charges. The magnetic field at any given point is specified by both a direction and a magnitude ; as such it is a vector field is produced by the flow of electric current Electric current means, depending on the context, a flow of electric charge or the rate of flow of electric charge (a quantity). This flowing electric charge is typically carried by moving electrons, in a conductor such as wire; in an electrolyte, it is instead carried by ions, and, in a plasma, by both. The magnetic field disappears when the current ceases.
Electromagnet attracts paper clips when current is applied creating a magnetic field, loses them when current and magnetic field are removed
Contents |
BayNewser
Well apparently today is the anniversary of the birth of the inventor of the electromagnet . So Google, good geeks that they are, doodled up their logo to ...
