Here I am using a piece of cold rolled steel bar and 10’ of 32 AWG winding wire to make an electromagnet. by wiring four “AA” cell batteries in parallel I was able to left 2 of long screws and lift a third most of the way off the table.
Here I am using a piece of cold rolled steel bar and 10’ of 32 AWG winding wire to make an electromagnet. by wiring four “AA” cell batteries in parallel I was able to left 2 of long screws and lift a third most of the way off the table.