for example wrought iron can be magnetised permanently but soft iron can only be magnetised temporarily(Electro Magnets).
iron nickel and colbolt
Metals can be magnetised which can produce an attractive force.
A simple block of magnetized iron is called a magnet.
magnets attract steel why then is a compass needle affected by a pice of steel if the steel is not magnetised
Contrary to popular belief, most metals cannot be magnetised. The only common metals that can be magnetised are iron, cobalt and nickel. Mild steel, an alloy that contains over 98% iron, can also be magnetised because of its high iron content. Some steels, such as some stainless steels, have larger percentages of other metals which prevent them from being magnetised the same way.
A Weakly magnetised nail will pick up less paper clips then a highly magnetised nail, Hope That Helps:)
The strong magnetised nail will pick up more paper clips than the weak magnetised nail.That is because the strong magnetised nail is getting more strength and that means that the weak magnetised nail is getting less strength.in a steel nail there are these things called domains, in a weakly magnetised nail some of them will be pointing north, south, east and west, but however in a strongly magnetised nail all the domains will point to north.
You can put a magnet near the metal. If it gets attracted or repelled, then it is magnetised
No.
Diamagnetic substances are not magnetised. Example: water is a diamagnetic substance, so it cannot be magnetised by any means.
what is the diffrence between a magnetised nail and a unmagnetised nail
lead is an inert metal and can not be magnetised
Activety site
Yes they do.
no
iron nickel and colbolt
Electronic and optical data storage and processing equipment can easily identify dichotomic behaviour: a choice of two positions: for example, on or off, pit or no pit, magnetised or not magnetised. It is much easier for a machine to unambiguously decide whether a particular memory location is magnetised or not magnetised rather than work out which of 10 levels of voltage it is at. The second option is much more likely to lead to errors. For that reason the binary system is well suited for electronic and optical data storage and processing.