Demonstrate the Force Developed by an Electromagnet with a Single Battery.
How many of your students can lift 100 times their own weight? This 6.3 cm, 0.9 Kg dissectible electromagnet can do just that-with the help of one 1.5 V D-cell battery that you provide - lifting up to 90 Kg. the core and yoke are precision - tolerated to within .03 mm. The battery is linked by alligator clips to a DC coil.