How do you set up an electromagnet?

Question

Using
- a small 9 volt battery
- wire
- long iron nail
- thin copper wire

also is that enough or do you need more materials?

i need the electromagnet to test the strength of it by changing one variable.

Answer 1

You just wrap the wire around the nail, lots of times, with at least a couple inches of lead from each end of the wire

Touch each end of the wire to the terminals of the battery (one to positive, one to negative), and you've got an electromagnet.

I suggest 100 wraps to start. A variable to test would be the number of wraps. Increase or decrease, and see what happens to the power of your magnet.

I presume the plain wire is used to test the strength of the magnet?

Answer 2

You could use the core as your variable, try changing the thickness of the core...or try other shapes. Such as, the straight core (you'd be using), the Horseshoe core, or the best core shape is supposed to be the C shape and even no core, called an air core.

You'll need to be careful that you do not connect to the battery directly too long, it will drain really fast without any other resistance.

Once you completely wrap the core remember to tape it entirely with masking tape or electrical tape ( for a single layer, single core) this will concentrate the flux through the core rather than about the core.

To increase magnetic flux you must do one of the following:
Increase current (wire size)
increase the number of turns about the core
increase the size of the solid metal core, or decrease the air core size.

Answer 3

wrap the long iron nail with copper wire. one end of the wire must be connected to the positive end of the battery while the other end is connected to the negative side...


you need more batteries and something to pick up with a magnet small nails or paper clips will do.

the batteries will be your variable, use more batteries to increase the magnets strength

Answer 4

in case you insert a rod of comfortable iron interior a coil it does not become a magnet until direct contemporary passes interior the direction of the coil. it's going to be an electromagnet whilst contemporary is contemporary. If the present is switched off then the comfortable iron piece loses its magnetic sources. it won't allure to iron anymore. (there is not any such ingredient as a comfortable magnet. comfortable iron is one in each and every of those iron.) If a magnet is inserted interior a coiled twine then the magnet will allure to iron no remember if contemporary is contemporary or no longer. it is not an electromagnet.