{
  "id": "vacuum-permittivity",
  "name": "Vacuum electric permittivity",
  "symbol": "epsilon_0",
  "value": 8.8541878128e-12,
  "unit": "F/m",
  "category": "Electromagnetic",
  "url": "https://gratisapi.com/api/physical-constants/vacuum-permittivity"
}