UNIVERSAL TOOL ATTACHMENT FOR ELECTROMAGNETISM DEMONSTRATION Russian patent published in 2015 - IPC G09B23/18 

FIELD: electricity.

SUBSTANCE: at one end of flat rod a coil if fixed, while at the second end a suspended opening is made to suspend the rod, and magnet. Ends of winding wire are connected to extending wires. Free ends of extending wires are equipped with plugs. The coil is equipped with a body covering it and diametrically opposed semi-axes; each of them is connected to one end of coil winding. Each semi-axis is inserted into the opening made in one stage of the respective multistage bracket. Another stage of each bracket is equipped with end rectangular shank by which brackets are fixed with mounting blocks at different sides to lateral surfaced of the rod. Extending wires are connected to mounting blocks. At the rod there is the central opening equidistant both from the centre of semi-axes and the centre of suspended opening made at the rod end. The rod is equipped with grips for packing of extending wires. The lower edge of multistage brackets and lower edge of the rod are placed in the same horizontal plane.

EFFECT: expansion of demonstrated experiments to study phenomenon of electromagnetic induction.

3 cl, 2 dwg