This Plotting Compass provides an economical way to conduct magnetism labs. Includes 20 compasses marked in red with North-South and East-West lines. Students can place several compasses around a bar magnet and draw the magnetic field lines. Each compass has a diameter of 19 mm. ...
Change of state of resistivity resulting from the reversal at the level of giant magnetic resistor (1) is plotted. Intensity of the magnetic field of a component is found based on time lag of the reversals during the two phases. An independent claim is included for a device for measuring ...