how to rotating magnet induced heating?
370991
When a magnet rotates around a conductor, it generates a current in that conductor. \n\nCurrent itself is actually the electrons in the conductor moving. Some of this momentum for each electron is lost when it collides against an adjacent electron or in moving against the repulsive force between them. The sum total of all this energy lost by all the electrons is seen as heat and the conductor heats up.
153625
STEAM TURBINE IS THE BEST EXAMPLE\n in this process steam rotates the turbine convert heat anergy to mechanical energy, and then mechanical turbine rotates the dynamo which creates electricity.
364153
Look up "alternators" on science project websites. Proper alternators use carbon brushes to connect a spinning coil inside a half cylindrial magnet. For a science project, the easiest apparatus is just a bar magnet spinning inside a fixed coil. The magnet spins, and produces alternative current in the coil. Use a diode to convert the AC into DC.
244341
Look up the mecahnical univers 43? on magnetic induction.
744142
Attract..mmm...TRY A MAGNET !!
531203
prooly need ifrared thingy\ntry a industrial magnet
946785
No one has answered for 5 hours probably because no one has heard of an incandescent magnet.\n\nA permanent magnet is usually formed from cooling a ferromagnetic material  in the presence of a strong magnetic field.  The field causes the individual magnetic domains to align parallel to the field.  When the material cools and solidifies, these small particles are no longer free to move.\n\nIf you heat such a magnet enough for it to incandesce, the tiny particles are again free to move, and will randomize their orientation to minimize the total energy of the system.
266808
Create an electromagnet by coiling the wire around the steel rod and attatching the wire to the power supply (put the ammeter in the circuit somewhere (in series). Use the retort stands to hold the weighing scales above the electromagnet. Place the 6 magnets in the weighing scale whilie the power supply is off. See what the weight of the magnets is. switch the power on and see whether there is any change in the weight. try repeating this a few times using different currents (measured on the ammeter). 100grams=approx 1Newton of force
1010542
By "magnetize" i'm assuming you mean, induce a magnetic field.  Maxwell's equations say that the easiest way to induce a magnetic field is to run a current through the medium.  Therefore, if the water in question is charged (it has a current running though it and doesn't have 0 charge) it should contain a magnetic field.  It is important to note, though, that the field does not belong to the water but the current running through it.
354803
You can take a magnetizable substance and change the polarity with electric coil or by rubbing another magnet in the same direction against the substance.  This will allign the mollecules changing the polarity of the object.
985642
You try what the first poster suggests, but it isn't likely to work well. Besides the danger mentioned of doing damage to the equipment, you will have one of these problems that will prevent the result you want:\n1) the electromagnet won't be strong enough to have any demagnetizing effect at all, \nor,\n2) the electromagnet will completely demagnetize the permanent magnet.\n\nUsually magnetic catches consist of a flat steel plate that seats against two poles of the magnet. A better solution is to put a few layers of tape on the steel plate so that it does not come into contact with the pole pieces. Depending on the kinds of tape you have around, one layer might be enough.\nMagnetic force falls off very rapidly as you separate the surfaces.
655524
http://en.wikipedia.org/wiki/Magnetic_Flux_Leakage\nThis is real good
519039
It really depends.  if you are trying to pass current through the magnet, hooking up the N pole to the + side of the battery, and the S pole to the - side of the battery, then nothing much, other than the magnet may heat up a bit.\n\nIf you are wrapping a copper coil around the magnet and then passing current through the coil, then depending on which way the current is flowing, and how strong a current you are using, you'll either make the magnet stronger, or make the magnet weaker.
731450
Faraday's law of Electromagnetic induction: refer http://en.wikipedia.org/wiki/Electromagnetic_induction\n\nThermodynamic processes: refer http://en.wikipedia.org/wiki/Thermodynamics
921703
Just let the units tell you what to do.  H=mass* T*sp heat.  with T in K
454527
wrap the bar in insulated copper wire, preferably solid core, keeping the wraps smooth and close together, and wrap three layers deep- when you reach the end of the first layer just wrap back towards the end you started at, same thing on third layer- them hook a DC power supply to the ends of the wire wrap, and let the thing run for 3-4 days (make sure when you hook it up that it doesn't heat much if any) pretty soon you've got a magnet.
404423
A simple AC electric generator simply involved rotating a magnet inside a coil, or rotating a rectangular coil inside a magnetic field (which is a little trickier requiring conducting rings at the ends of the coil and carbon brushes to connect the rotating coil to the external circuit).\n\nAs the coils pass through the magnetic field, the current induced is proportional to the strength of the magnetic field, the speed at which the coil passes through the field, and the area of the coil, and the number of turns in the coil.\n\nThe maximum electromotive force generated in each turn of the coil, (essentially, the voltage amplitude of the AC current produced), is given by:\n\nEMF = NBAw\n\nN = number of turns in coil\nB = magnetic field\nA = area of coil\nw = angular frequency of coil = 2 pi / T  \n(T = period)\n\n A single loop of wire passing slowly thought a weak magnetic field will produce the lowest possible current, which will appear alternating pulses if measurable at all. Increasing the contributing factors slowly will allow you to find the threshold at which AC current can be detected.