A precision multimeter (Keithley Instruments 2700, USA) was used to measure the OCV and voltage output of the MFC every 30 min during the experiments. In order to perform the polarization curve tests, the MFC electrodes were linked to a variable resistance box from high to low 500.00, 300.00,200.00 and100.00- 12) and the voltage output is obtained (1.20, 1.18, 1.10 and 1.08 V), respectively. . Draw the polarization curve along with analysis of the relationship between the voltage, current density, and resistance? OCV: 1.25 V . Anode surface area: 5 (cm2) A precision multimeter (Keithley Instruments 2700, USA) was used to measure the OCV and voltage output of the MFC every 30 min during the experiments. In order to perform the polarization curve tests, the MFC electrodes were linked to a variable resistance box from high to low 500.00, 300.00,200.00 and100.00- 12) and the voltage output is obtained (1.20, 1.18, 1.10 and 1.08 V), respectively. . Draw the polarization curve along with analysis of the relationship between the voltage, current density, and resistance? OCV: 1.25 V . Anode surface area: 5 (cm2)