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Detect electric charges and determine polarity
Turn on the device and use a pad for adult/pediatric treatment connected in advance
1 Trolley comes with spring and another without spring
the apparatus includes a wood rod for comparison
AC Output:
Gagnon's Potometer Detect electric charges and determineFor the demonstration of transpiration rates and rates of water absorption by a cut shoot under various external conditions. The whole apparatus is filled with water and a plant shoot is sealed into a stopper which fits the end tube. The open end of the capillary tube, which is graduated in millimeters, is placed into a beaker of water. An air bubble is generator by dipping the graduated tube out of and back into a beaker of water. The air bubble can
