电磁铁与电路探究实验箱

评测依据

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• intros：{"brand_intro":"中科教育隶属于中国科学院旗下，专注K-12科学实验器材研发20年。产品依托中科院物理所专家团队设计，强调\"探究式学习\"理念。其实验箱系列被列入教育部《中小学教学仪器配备标准》，多次获得国家级教学成果奖。品牌以专业性和权威性著称，是众多重点中学实验室的指定供应商。","product_intro":"该实验箱为进阶型电磁学教具，包含可拆卸电磁铁、滑动变阻器、电流表、电压表、铁芯及多种线圈。支持定量探究电磁铁磁力与电流、匝数、铁芯材质的关系，并设计有电磁继电器、电铃模型等综合实验。箱体采用铝合金框架，内部零件分区收纳，附赠16课时数字化教案（含二维码视频）。","key_specs":["适用对象：初中生/高中生","组件数量：35件","电源：3节AA电池或外接直流电源","电流表量程：0-0.6A/0-3A","线圈匝数：50/100/200匝可选","实验数量：12个核心实验+6个拓展"]}
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