The more turns of wire in an electromagnet the stronger the magnetic field.
the more times you wrap it the stronger it will become. less wraps less powerful
the electromagnet is in the track then there are permanent magnets on the very bottom of the train on the part that wraps around the track
Three things affect the strength of an electromagnet.The number of turns/wraps of wire.The amount of current flowing through the wire (which is determined by the voltage and the size & kind of the wire).What the core is made of -- the core is the thing the wire is wound around. It will be much stronger if wound around metal than air. Iron makes a better core than most other metals.
A magnetic field is induced by pushing current though a wire; so you could consider a straight wire an electromagnet. Using more coils will strenghten the electromagnet, though, so a straight wire version will be very weak comparitively.
If there are only a few wraps, the magnetic field will be weaker than if there are many more wraps.
2 wraps
It will take approximately 40 minutes to make the minimum of 360 wraps for the party. This can be calculated by dividing the total number of wraps needed (360) by the number of wraps made per minute (9).
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One way to increase the strength of a copper electromagnet is by adding another coil. Another way is by wrapping the copper coil around a nail made of iron.Adding more loops to the wireWrapping the copper wire around an iron nailIncreasing the current
There are too many types of wraps to address your question properly: hand wraps, leg wraps, cigar wraps, salad or sandwich wraps, gift wraps, silk wraps, head wraps, etc.Please feel free to ask your question again with more detail so that we may help you to obtain the answer you seek.
There are so many kinds of wraps: hand wraps, legwraps, gift wraps, silk wraps, head wraps, cigar wraps, sandwich or salad wraps. Each has its own individual history and may be totally unrelated to the others.Please feel free to ask your question again with more detail so that we may help you to obtain the answer you seek.