Electrical resistance in microbial fuel cell circuits can be analyzed using Ohm's law (V = I·R).
NOT BSTOTAL BS
NOT BS — Verdict: True
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The Short Version
The statement is well supported by standard microbial fuel cell practice. Peer-reviewed reviews and methods papers routinely use Ohm’s law to calculate current through known external resistors and to estimate effective resistance, especially in the linear ohmic region. MFCs can depart from simple ohmic behavior outside that region, but that limits precision rather than the basic applicability of V = I·R.
Caveats
Ohm’s law is most reliable for the external load and the linear ohmic region of the polarization curve, not as a full model of all MFC behavior.
At low and high current densities, activation and mass-transfer losses can make the cell deviate from a simple V = I·R relationship.
Resistance estimated from polarization curves may reflect effective/internal resistance and can include non-ohmic losses, not just pure ohmic resistance.