Electric field lines are always perpendicular to equipotential surfaces. Parallel plates, point charge, electric dipole. Every case, 90 degrees. Know one map, construct the other! youtu.be/mL-_HSorl00

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PEF pretreatment creates porous matrix in potato strips, reducing hardness by 35% and increasing resistant starch from 17.23% to 24.59% vs thermal blanching for healthier air-fried French fries.
Details: https://www.maxapress.com/article/doi/10.48130/fia-0026-0026
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