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0-9999.9 Ohm Variable Resistance Box Decade Resistor Experimental Equipment for Physical School Teaching auspowers_batchsix reduced risk of injury0 9999. 9 Ohm Variable Resistance Box Decade Resistor Experimental Equipment for Physical School Teaching 100% brand new and high quality Features: 1. Can be applied to electrical experiment for midlle school, technical secondary school and other proper situations. 2. Suitable for verifying parts of Ohm's law. 3. Can be used to measure unknown resistance. 4. Can serve as great teaching and exprimental equipment. 5. Ideal for adjusting current in need
