Students can study electromagnetism with this electromagnet that can lift at least 1.65 lbs / 750g / 7.5N at 6 Volts / 1A input. This electromagnet consists of 2 copper wire bobbins, each placed around dual 0.25" / 7mm diameter soft iron cores. Pair this magnet with a set of spring scales to measure the relationship between input voltage and force. A great way to study remanence (magnetization left behind after a magnetic field has been removed). Comes complete with connecting wires and plastic storage case.
Specifications Dimensions (l x w x h): 2.25" x 2.25" x 3.5" / 5.7cm x 5.7cm x 8.8cm Iron Core Total Length: 2.5" / 64mm Iron Core Diameter: 1/4" / 7mm Input Voltage: Up to 6V DC at 1A. Weight (with accessories): 0.5 lbs.
Fun! But do you sell a version with the scale the directions suggest? Maybe I missed that. Electromagnets are fun to build piece by piece, so the measurement aspect was really what we were looking forward to.