{
  "kind": "合成对照输入与本地模型/解析结果，非设备实测",
  "article": "https://qifudev.com/article/network-parallel-750-ohm/",
  "tool": "https://qifudev.com/tools/resistor-network/",
  "model": "R串=R1+R2；R并=1/(1/R1+1/R2)",
  "inputs": {
    "a": "1000",
    "b": "3000"
  },
  "outputs": {
    "series": 4000,
    "parallel": 750
  },
  "extra_checks": [],
  "warnings": [],
  "limitation": "只算两只理想电阻，不推断功率分担、温度系数或动态负载。",
  "source": {
    "label": "OpenStax：串并联电路",
    "url": "https://openstax.org/books/university-physics-volume-2/pages/10-2-resistors-in-series-and-parallel"
  },
  "measured": {
    "device": null,
    "firmware": null,
    "instrument": null,
    "conditions": null,
    "raw_result": null,
    "verdict": null
  }
}