I am currently helping my daughter on her science project for school. We have a really basic design.
We are using a 5 inch screw wrapped with 20 gauge magnetic wire. We tested how strong the magnetism was with a 1.5 V-AA battery and a 9V battery. Using a multimeter, The 1.5V battery measured ~1.4V and the 9V battery measured ~8.7V.
What's really confusing is that the 1.5V battery seems to create a slightly stronger magnet than the 9V battery. Does anyone have any clue why this is happening?
Also, I haven't been connecting the wire to the battery terminals with my bare hands. Should I be using alligator clips for a more secure and identical connection?
We are using a 5 inch screw wrapped with 20 gauge magnetic wire. We tested how strong the magnetism was with a 1.5 V-AA battery and a 9V battery. Using a multimeter, The 1.5V battery measured ~1.4V and the 9V battery measured ~8.7V.
What's really confusing is that the 1.5V battery seems to create a slightly stronger magnet than the 9V battery. Does anyone have any clue why this is happening?
Also, I haven't been connecting the wire to the battery terminals with my bare hands. Should I be using alligator clips for a more secure and identical connection?