what can most easily produce a magnetic field water, electricity , sunlight , petroleum?
Aluminium is called the wonder metal.It is extracted from bauxite.It is the one of the light metal.It is non corrosive.It is actually a metalloid.It is used in the manufacture of aircrafts
Sir Humphry Davy proposed the name aluminum for the metal, however, the name aluminium was adopted to conform with the ium ending of most elementsThis spelling is in use in most countriesAluminium was also the spelling in the U.Suntil 1925, when the American Chemical Society officially decided to use the name aluminum insteadIn case you ever wanted to know why it was pronounced Al-lu-min-um instead of Al-lu-min-eeyumAluminum also can be produced from clay, although this is not the most economically feasible method at presentAlso, Aluminum is the most abundant metal in the Earth's crust (8.1%), although it is not found free in natureGo recycling!
Sunlight and petroleum by themselves cannot produce any kind of magnetic fieldHowever, electricity, which is by definition already flowing through wires, is locked with a magnetic field, which is why we call it electromagnetismThey go hand in hand, you can't have one without the otherElectricity will create magnetic field whose orientation follows the right hand rule, wrapping itself around the wireThis field itself is small (but it's still there)However, when copper wire is well coiled around an iron nail (or something similar), the magnetism of the copper wire will influence the randomly-oriented magnetic domains within the nail to line upAs these magnetic domains within the nail/whatever are aligned, they create a strong magnetic field (ferromagnetism) that is many, many times stronger than the original magnetic field of the electric flow, and stronger than any normal rare earth magnetThis is why you'll see the specialized electromagnetic cranes lifting up tons of scrap metal and junk cars and tossing them around the yard like diceOne interesting bit though is that in your nail, when the electricity is turned off in your copper coils, those fields will go away, but your nail will retain some of its newly-imparted alignment - which is why you can watch these same EM cranes have bits of iron stick to them even after the majority of their load has been dumped.
