My brother decided to work on magnets and we are looking for any type of information on magnets. Please help. Thank you!
2006-12-16 03:50:04 · 5 answers · asked by GG 2 in Science & Mathematics ➔ Earth Sciences & Geology
Metals that contain iron, nickel or cobalt, but not all combinations of these metals with other elements.
Alnico contains aluminum, nickel, cobalt and is very magnetic.
Some stainless steel (iron, chrome and other) are totally non-magnetic.
2006-12-16 03:57:16 · answer #1 · answered by Anonymous · 1⤊ 0⤋
Iron is the best answer is already stated. However, permeativity to magnetism can be inceased several ways. For example, if you need to make a good inductor, such as a transformer, where the coil windings and magnetic field in the primary coil will create a magnetic field in the secondary coil, and thus electricity, you want the highest possible magnetic conductance coupling the two coils to each other. One way to do that is to take skinny individual metal plates and place them right next to each other and create a square magnetic conductor rather than one big piece of iron of equal thickness. The relationship of coil windidings to voltage is: N1/n2 =V1/v2, so the ratio of turns of N1 (primary coil) devided by turns ratio of the secondary coil is the voltage ratio. So for example, if we want 40 volts from the secondary, but have 120 volts from the primary, we have 120/40=30:1 ratio. So if the primary winding is 300 turns and the secondary winding is 10 turns, we would achieve the desired effect. Because 300:10 is like 30:1. However, this would not be possible without a highly efficient magnetic coupling between the two coils. If the "coefficient of coupling" is less, the formula is not as accurate. So in a way, you have an indirect way of measuring magnetic saturation of a magnetic conductor. Also, sprinkinling iron particles on a piece of plastic that winds from reel-to-reel is how audio cassettes and VHS video cassets work. The magnetic field that carries the audio is encoded in the magnetic pattern of the iron particles. I hope I helped. Any more questions feel free to ask
2016-05-22 23:23:54 · answer #2 · answered by ? 4 · 0⤊ 0⤋
Materials with a strong magnetic moment.
Doug
2006-12-16 04:00:03 · answer #3 · answered by doug_donaghue 7 · 0⤊ 0⤋
git a magnet on a good size rope then throw it in the water bring it back and you will have what looks like black dust what is that or it might be like my house were you bring back garbage can you recycle what you find in the environment after you go for a walk or go for a swim i can
2006-12-16 03:54:28 · answer #4 · answered by peter w 4 · 0⤊ 0⤋
only ferrous (iron) metals
2006-12-16 03:59:27 · answer #5 · answered by GAValkRider 2 · 1⤊ 0⤋