# The strength of an Electromagnet

The strength of an Electromagnet The strength of an ElectromagnetPlanning Experimental proceduresCurrent is the quantity that I am intending to investigate in my experiment is the strength of the electromagnet. The factors that affect the strength of an electromagnet are: The temperature, current, length of the core, diameter, the thickness of the wire used for the coils, how tightly the coils of wire are wrapped around, the material and also the number of turns on the electromagnet. I am only going to vary current in the experiment, all the other factors I will keep constant, with the number of coils being set at 40. I have chosen to vary current because, the more turns there are, the more powerful the magnet becomes and therefore the more domains there are. The thicker the diameter is, the more domains there are in the middle and therefore the stronger the electromagnet becomes. The higher the temperature is, the easier it is for the domains to be able to turn and line up. If you use a thinner wire it will cause more resistance in the experiment. All of these factors will change the strength of the electromagnet. I decided to do current, as the others were more difficult to do. I believe that when I do the experiment, proportionally as the current increases, the strength
will increase.Weight (N)                            Current (A)I have made this prediction because as you increase the current, you will induce more domains to line up- and if its proportional, you would then double your current which would therefore double the domains (force). If you were to cut a magnet in half, it doesn’t destroy it, in actual fact two magnets are created. If you wanted, you could continue cutting the magnets in half each time  therefore making the magnets smaller and smaller. In theory, if we used an extremely sharp, but still small blade, we would be able to on cutting magnets ...