the density indicates the relative magnitude of the field
{"Image DocumentName": "The density (number of lines) indicates the relative magnitude of the field.", "Image ImageDescription": "Electric fields are greatest at points or sharp edges.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}