{"product_id":"adjustable-resistance-box-0-99999-ohm-variable-resistor-physics","title":"0–99999.9Ω Adjustable Resistance Box | Variable Resistor Lab Tool","description":"\n\u003ch2\u003e0–99999.9Ω Adjustable Resistance Box – Physics Teaching \u0026amp; Lab Equipment\u003c\/h2\u003e\n\u003cp\u003eTake your physics experiments and classroom demonstrations to the next level with this precision \u003cstrong\u003eAdjustable Resistance Box\u003c\/strong\u003e. Spanning a wide range of \u003cstrong\u003e0 to 99,999.9 ohms (Ω)\u003c\/strong\u003e, this variable load resistor is the ideal tool for verifying Ohm's Law, measuring electromotive force (EMF), determining unknown resistances, and regulating circuit current — all with easy dial-based precision.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Resistance Range:\u003c\/strong\u003e 0–99999.9Ω across six dial positions (×100K, ×10K, ×1K, ×100, ×10, ×1) for highly accurate, step-by-step adjustment.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVerify Ohm's Law:\u003c\/strong\u003e Ideal for demonstrating and verifying Ohm's Law in physics circuits.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVoltage Range Expansion:\u003c\/strong\u003e Use as an additional resistor to extend the voltage measurement range of your instruments.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUnknown Resistance Measurement:\u003c\/strong\u003e Quickly determine unknown resistances in a variety of circuit configurations.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEMF \u0026amp; Internal Resistance Measurement:\u003c\/strong\u003e Accurately measure the electromotive force and internal resistance of power supplies.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCurrent Regulation:\u003c\/strong\u003e Acts as a known reference resistor to set and regulate the desired current in a circuit.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh Insulation:\u003c\/strong\u003e Insulation resistance between internal metal parts and outer shell exceeds 20MΩ for safe, reliable use.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDurable Plastic Housing:\u003c\/strong\u003e Lightweight and sturdy black plastic enclosure built for classroom and laboratory environments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eResistance Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0 – 99,999.9 Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReference Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.5 W\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e15°C – 30°C\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInsulation Resistance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026gt; 20 MΩ\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePlastic\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eColor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBlack\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBattery Required\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMade in Mainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eHow to Use\u003c\/h3\u003e\n\u003cp\u003eConnect the two terminals to your circuit or measuring instrument (such as a multimeter). Adjust the corresponding dials to your desired position. Each knob pointer reading is multiplied by its respective multiplier (×100K, ×10K, ×1K, ×100, ×10, ×1) and the values are summed to obtain the total resistance value displayed at the current knob positions.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's in the Box\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1× Adjustable Resistance Box (0–99999.9Ω)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eNotes\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eColors may vary slightly from images due to screen display differences.\u003c\/li\u003e\n  \u003cli\u003ePlease allow a tolerance of 1mm–1cm due to manual measurement.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFor a deeper understanding of resistance, Ohm's Law, and circuit fundamentals, visit the \u003ca href=\"https:\/\/www.nist.gov\/si-redefinition\/ampere\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eNIST – Electrical Units Reference\u003c\/a\u003e for authoritative standards and definitions used in electrical measurement.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What is an adjustable resistance box used for in physics experiments?\u003c\/h4\u003e\n\u003cp\u003eA: An adjustable resistance box is used in physics and electrical engineering experiments to set precise, known resistance values in a circuit. Common applications include verifying Ohm's Law, measuring unknown resistances, determining the electromotive force (EMF) and internal resistance of a power supply, and regulating circuit current for controlled testing.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What is the resistance range of this variable resistor?\u003c\/h4\u003e\n\u003cp\u003eA: This resistance box covers a range of 0 to 99,999.9 ohms (Ω), adjustable via six dials with multipliers of ×1, ×10, ×100, ×1K, ×10K, and ×100K. Simply sum the readings from each dial multiplied by their respective multipliers to get your total resistance value.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is this resistance box suitable for classroom teaching?\u003c\/h4\u003e\n\u003cp\u003eA: Yes — this variable resistance box is specifically designed for physics teaching and educational laboratory use. Its clear dial interface makes it easy for students to understand resistance concepts hands-on, and its wide range of 0–99999.9Ω covers virtually all standard high school and university-level physics experiments.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Does this resistance box require batteries?\u003c\/h4\u003e\n\u003cp\u003eA: No. The resistance box does not require any batteries. It is a passive component that simply needs to be connected into your circuit or to a measuring instrument such as a multimeter to function.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What is an adjustable resistance box used for in physics experiments?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"An adjustable resistance box is used in physics and electrical engineering experiments to set precise, known resistance values in a circuit. 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It is a passive component that simply needs to be connected into your circuit or to a measuring instrument such as a multimeter to function.\"}}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"BreadcrumbList\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/kujrmc-0q.myshopify.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Electronics \u0026 Tech\", \"item\": \"https:\/\/kujrmc-0q.myshopify.com\/collections\/electronics-tech\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"0–99999.9Ω Adjustable Resistance Box | Variable Resistor Lab Tool\", \"item\": \"https:\/\/kujrmc-0q.myshopify.com\/products\/adjustable-resistance-box-0-99999-ohm-variable-resistor-physics\"}]}\u003c\/script\u003e","brand":"Vue","offers":[{"title":"Default Title","offer_id":48750133706944,"sku":"\u003cnone\u003e","price":120.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0772\/9338\/7968\/files\/Sfc7c6bfd2a17416a9e7259d476f8b48au.webp?v=1786223769","url":"https:\/\/vueselect.com\/products\/adjustable-resistance-box-0-99999-ohm-variable-resistor-physics","provider":"Vue","version":"1.0","type":"link"}