Now, touch the first object with the magnet to see if your prediction is correct. Continue making predictions and testing each object. The paper clips, jar lid, and nail are probably magnetic. The ...

and watch it pick up paper clips or other ferrous materials. It is also grade school science to show that neither an electromagnet nor a permanent magnet will pick up nonferrous items like copper ...

As the number of turns increases the number of paper clips held increase. This means that the strength of the magnet increases with increasing number of turns in the coil. Once again, since the ...