Magnetic Needle

Description

Both sides glass tops, 20 mm diameter. With both sides glass tops, 20 mm diameter.

Description

Laplace Apparatus works without mercury. The study of Lorentz’s force is a crucial topic of introductory physics courses and interaction between electric currents and magnetic fields is a major issue of electromagnetism. Power supply is required but not included.

Description

This apparatus spins an electrically charged brass wheel spin, without the aid of a motor. When the wheel electrified by a voltage source (battery), the slotted brass disc sets up eddy currents throughout the structure. This electricity is then attracted to 4 strong neodymium magnets, causing the wheel to spin.

Description

Bar magnet pair with keeper Alnico Bar Magents (Pair) with spacer and keepers. Supplied in cardboard boxes Actual bars may be different size than stock photo. Bar Magnet Alnico (Pair) Size are mentions below which we have :- 38 x 10 x 5 mm (1.5") 50 x 10 x 5 mm (2") 75 x 10 x 5 mm (3") 100 x 10 x 5 mm (4") 150 x 10 x 5 mm (6")