Обучающая коробка сопротивления для физических и электрических экспериментов

Product Name:

Teaching Resistance Box for Physical and Electrical Experiments J23022

I. Overview
J23022 teaching resistance box is designed and manufactured in accordance with the requirements of "Catalogue of Instruments for Teaching Science in Middle Schools" compiled by the State Educational Commission. It is mainly used as standard resistance in physics teaching to verify Ohm's law, or as additional resistance to expand the range of ammeter and voltmeter. It can also be used to measure unknown resistance and to connect variable resistance into electronic circuit to regulate the working point current and electricity required. At the same time, the resistance box can also be used to measure the EMF and internal resistance of the power supply. It is an indispensable instrument in physical and electrical experiments.

II. Main Technical Performance

2-1. Measurement range: 0-9999.9Ω.

2-2, minimum progressive value: 0.1Ω.

2-3. Accuracy: +1.0%.

Residual Resistance Tolerance: R0<0.5.

2-5. Use temperature: 10-350C.

2-6. Use relative humidity: < 80%.

2-7. Reference power: 0.5W.

2-8. The insulation resistance between the inner circuit of the resistance box and the metal part of the outer shell is greater than 20M.