Determine Hall Voltage and CoefficientThe usability of this Hall Effect Apparatus sets it apart from all others available to education. The most distinguishing feature allows the student to individually mount a Ge crystal, unlike others which are equipped with a permanently mounted crystal. Using the device, students can also determine the type of charge carrier (p or n), the charge density of carriers, and the resisivity of a given sample. The unit includes a Gauss meter with probes; digital multimeter; semiconductor 'Ge' sample, p type; and Hall effect apparatus. We recommend our power supplies, WLS1799-17 and WLS1799-20.