China Wholesale Earth Magnetic Field Factories – LEEM-22 Four-Terminal Resistance Measurement Experiment – Labor

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China Wholesale Earth Magnetic Field Factories – LEEM-22 Four-Terminal Resistance Measurement Experiment – Labor Detail:

Experiments
1. Use single bridge and double bridge to measure the same small resistance, compare and analyze the measurement results, and estimate the lead resistance;
2. Measure the resistance and temperature coefficient of the four-wire copper resistance.

The main technical parameters
1. Including the small resistance board to be tested;
2. Homemade four-wire copper resistance, including enameled wire;
3. Electric heater, beaker;
4. Digital thermometer 0～100℃, resolution 0.1℃.
5. Optional accessories: QJ23a single arm bridge
6. Optional accessories: QJ44 double-arm electric bridge

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