The 'strength' (flux density) of an electromagnet is limited by the saturation point of its core. Once saturation is reached, any further increase in current through the coil can have no effect on the flux density.
-- gluing heavy weights to it
-- painting it red
-- hanging it on the wall
-- shouting at it
-- soaking it in brine
-- making it do exercises
-- heating it
-- freezing it
-- taking it for a ride in the car
-- reading to it
-- whipping it
-- encouraging it
electromagnets
fabric that are made of
The carriages are made of wood and metal. The motor is a series of electro-magnets.
yes
Things that do not have long chain moleculesin general cannot be made to plastic. Buteven milk & starch can be made into plastic.
yes. to make it stronger, increase the electric flow.
yes and no.
Put more coils around it.
Yes (and often are).
Electromagnets are stronger and weigh far less than permanent magnets.
using a stronger ferromagnetic material for the core. :)
No, electromagnets are stronger than bar magnets.
Yes, because electromagnets can lose their magnetism.
William sturgeon
Yes.
Electromagnets...electromagnets are magnets attract, or pull, some kinds of metal objects. Stronger magnets exert a greater pull on the objects they attract. Sometimes it would be useful if you could turn off a magnet when you did not want it to attract objects. That is what an electromagnet can do. Some electromagnets .in power plants and factories electromagnets are very large. You can make a small, simple electromagnet in school or at home.
Electromagnets' magnetism can be manipulated. Electromagnets can be magnetised and demagnetised by passing electric current. Therefore they are used in motors- which works when the coil is magnetised by passing an electric current. It is also used for cranes.