Plastic
Resistance box is used to measure the unknown resistance. It is used to measure the electromotive and internal resistance of the power .
Decade resistance box, made of Plastic material, flexibility and excellent durability, easy to use, for service life.
Resistor Substitution Box Size: 14X10X5CM; and durable. The simple resistance box is used as an additional resistance to expand the range of the voltmeter.
Resistor box, Used for physical electricity experiment teaching.
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