Almost a year ago, I used a shallow tub of water to map the equipotential lines and derive the field lines between two electrodes submerged in the water.
I used 30Vdc, except in a single case where I switched to 60Vdc as can be seen at the picture with the Fluke meter. The center line is at 30V, not 15 🙂
As a fun thing, you can submerge LEDs in the water, and if they’re oriented the right way according to the field (polarity)direction, they’ll actually light up, right there in the water! 🚨💧👌🏻🤓
It’s a fun and safe way to play with electric fields and experience their properties 👍🏼
#stem #stemeducation #physics #physicslab #testandmeasurement #engineer #eevblog #fluke