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The smallest temperature difference that can be measured with a combination of a thermocouple of thermo emf 30 mV per degree and a galvanometer of 50 W resistance, capable of measuring a minimum current of 3 × 10' 7A, is

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The smallest temperature difference that can be measured with a combination of a thermocouple of thermo emf 30 mV per degree and a galvanometer of 50 W resistance, capable of measuring a minimum current of 3 × 10' 7A, is






 
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