{"product_id":"ohms-law-apparatus","title":"OHM's Law Apparatus","description":"\u003cdiv class=\"formula-label\"\u003e\n\u003ch2\u003eAbout OHM's Law Apparatus\u003c\/h2\u003e\n\u003cp\u003eThe Ohm's Law Apparatus (SE.EM1464-01) provides a hands-on introduction to one of electricity's foundational principles. The self-contained wooden enclosure brings together all key circuit components on a single panel, allowing students to observe the direct relationship between voltage, current and resistance without complex wiring or setup.\u003c\/p\u003e\n\u003cp\u003eA built-in rheostat lets the teacher or student vary current flow in real time. As the rheostat is adjusted, both the milliammeter and voltmeter readings change, making the proportional relationship immediately visible. By recording pairs of V and I values at different rheostat settings, students can calculate resistance using\u003cspan\u003e \u003c\/span\u003e\u003cem\u003eR = V \/ I\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003eand confirm that resistance remains constant for a given resistor — demonstrating Ohm's Law empirically.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMilliammeter and voltmeter mounted on a single readable panel\u003c\/li\u003e\n\u003cli\u003eRheostat provides smooth, variable current control\u003c\/li\u003e\n\u003cli\u003ePush key ensures safe, momentary circuit connection\u003c\/li\u003e\n\u003cli\u003eCircuit diagram printed directly on the panel for reference\u003c\/li\u003e\n\u003cli\u003eTerminal posts accept standard external battery and resistance connections\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSuitable for secondary and senior science classrooms studying electricity, this apparatus supports curriculum requirements around Ohm's Law, series circuits, and the relationship between electrical quantities. Works with a standard dry cell battery (not included) and any suitable resistor or resistance wire.\u003c\/p\u003e\nOhm's Law\u003c\/div\u003e\n\u003cdiv class=\"formula-display\"\u003eV = I × R\u003c\/div\u003e\n\u003cp\u003eVoltage (V) = Current (I) × Resistance (R). Measure any two quantities from the panel to calculate the third.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eA self-contained wooden apparatus for demonstrating Ohm's Law in the classroom or laboratory. Students observe directly how voltage, current and resistance interact — reading live values from the panel-mounted milliammeter and voltmeter, then applying \u003c\/span\u003e\u003cem\u003eV = I × R\u003c\/em\u003e\u003cspan\u003e to verify the relationship.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv class=\"box-label\"\u003e\u003cstrong\u003eSupplied with apparatus\u003c\/strong\u003e\u003c\/div\u003e\n\u003cul class=\"includes-list\"\u003e\n\u003cli\u003eWooden enclosure panel\u003c\/li\u003e\n\u003cli\u003ePanel-mounted milliammeter (mA)\u003c\/li\u003e\n\u003cli\u003ePanel-mounted voltmeter (V)\u003c\/li\u003e\n\u003cli\u003eRheostat for variable current control\u003c\/li\u003e\n\u003cli\u003ePush key (momentary switch)\u003c\/li\u003e\n\u003cli\u003eTerminal posts for external connections\u003c\/li\u003e\n\u003cli\u003eCircuit diagram printed on the panel\u003c\/li\u003e\n\u003cli\u003eInstruction booklet \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"box-label\"\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003eRequired — not supplied\u003c\/strong\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cul class=\"not-included-list\"\u003e\n\u003cli\u003eExternal battery (e.g. 1.5 V–6 V dry cell)\u003c\/li\u003e\n\u003cli\u003eSuitable resistance\/resistor for testing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"specs-title\"\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable class=\"specs\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSE.EM1464-01\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnclosure\u003c\/td\u003e\n\u003ctd\u003eWooden panel construction\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstruments\u003c\/td\u003e\n\u003ctd\u003eMilliammeter (mA) \u0026amp; Voltmeter (V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent control\u003c\/td\u003e\n\u003ctd\u003eBuilt-in rheostat\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSwitch\u003c\/td\u003e\n\u003ctd\u003ePush key (momentary)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnections\u003c\/td\u003e\n\u003ctd\u003eTerminal posts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCircuit diagram\u003c\/td\u003e\n\u003ctd\u003ePrinted on panel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery\u003c\/td\u003e\n\u003ctd\u003eNot supplied (external)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResistance\u003c\/td\u003e\n\u003ctd\u003eNot supplied (external)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstructions\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv class=\"trust-strip\"\u003e\n\u003cdiv class=\"trust-item\"\u003e\n\u003cspan class=\"trust-icon\"\u003e🏫\u003c\/span\u003eClassroom ready\u003c\/div\u003e\n\u003cdiv class=\"trust-item\"\u003e\n\u003cspan class=\"trust-icon\"\u003e📋\u003c\/span\u003eInstructions included\u003c\/div\u003e\n\u003cdiv class=\"trust-item\"\u003e\n\u003cspan class=\"trust-icon\"\u003e🚚\u003c\/span\u003eFast dispatch\u003c\/div\u003e\n\u003cdiv class=\"trust-item\"\u003e\n\u003cspan class=\"trust-icon\"\u003e🔬\u003c\/span\u003eLab grade\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Science Equip ","offers":[{"title":"Default Title","offer_id":51419551301856,"sku":"SE.EM1464-01","price":1058.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0119\/9223\/6090\/files\/OHMS_law_apparatus.jpg?v=1775786962","url":"https:\/\/www.scienceequip.com.au\/en-hk\/products\/ohms-law-apparatus","provider":"Science Equip ","version":"1.0","type":"link"}