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Electromagnet has four matters factory the size of

Influence the composition of the electromagnet manufacturer magnetic size matters has four: one is around the iron core coil turns on, the second is the strength of the current in the coil, the interval of three is around the coil and iron core, four is the size of the core pattern. Up first inquire about electromagnet manufacturers of magnetic is intended, electric solenoid magnetic field, by biot -- savart law should B = u0 * n * I, B felt strength for magnetic, u0 for constant, n for the solenoid number of turns, I for the current in the conductor, to is the size of the magnetic field is the current size and the solenoid number of turns determined!

Environment and complex a few core, iron core is thick with coil how much, and the size of the current match, how much, and the size of the current in coil and iron core foundations match environment, core thin a little coarse a little not much. At this time only by increasing magnetic core progress electromagnet manufacturer is not able to. That said, also is not the core as thick as possible, not iron core as thin as possible. Else, horseshoe core stronger than iron core magnetic bar, because it put the poles of the magnetic density in all the way. Iron nails in our elementary school science lecture hall, the thickness of magnet manufacturer has a little influence on the size of the magnetic, at least through determination of existing things. Study confirmed that the electromagnet manufacturers of magnetic strength all four composition was determined by: one is the material of the core ripe core magnetic field is the strongest, while the core magnetic field the weakest; The second is around the iron core coil number of turns on; Three is the strength of the current in the coil; The interval of conductor and core of four is around. Thick nails around the wire with iron core in the middle of the interval of a few, the electromagnetic force of getting smaller, variable and complex, and it is not easily determined. Has nothing to do with the temperature! Biot -- savart law should B = u0 * n * I, B felt strength for magnetic, u0 for constant, n for the solenoid number of turns, I for the current in the conductor, and is the size of the magnetic field is the current size and the solenoid number of turns to! Electromagnet manufacturer of magnetic size (1, serial number of the battery. 2, the number of turns of coil around). Scientific experiments 1 topic: electromagnet manufacturers of magnetic force size is associated with what? Assume that is associated with wire circle number. The coil number of turns, magnetic force; The coil number of turns, small magnetic. Link is fixed: iron nails cell number, thickness and so on. The necessary changes is: to the coil number of turns assertion: electromagnet manufacturers of magnetic force size is associated with the coil number of turns. The coil number of turns, magnetic force; The coil number of turns, small magnetic.



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