Impedance Matching

19/09/2025

Listen "Impedance Matching"

Episode Synopsis

Among electric fish, those that live in freshwater have their generating cells arranged “in series”; in saltwater they appear “in parallel.” Seawater conducts better than fresh water, so freshwater fish need to generate a high voltage to overcome the resistance of their medium. Their electricity-producing cells are arranged in series. Marine fish operate at higher currents but lower voltages, so their electrocytes appear in parallel.

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