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Aim

Theory

Pretest

Procedure

Simulation

Posttest

References

Contributors

Feedback

Impedance/resistance experiment using source meter

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Beginner

Intermediate

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1. In MFC, the impedance refers to

a: Total resistance to electrical current flow within the system. Explanation

Explanation

b: Total resistance to substrate utilization within the system Explanation

Explanation

c: Total number of transfer of electrons within the system. Explanation

Explanation

d: Total number of transfer of protons within the system. Explanation

Explanation

2. Factors contributing to impedance in a MFC:

a: Surface area of electrodes Explanation

Explanation

b: Spacing of electrodes Explanation

Explanation

c: Biofilm formation Explanation

Explanation

d: All the above Explanation

Explanation

3. The higher surface area of the electrode materials contributes to:

a: Higher impedance Explanation

Explanation

b: Higher resistance Explanation

Explanation

c: The lower efficiency of MFC Explanation

Explanation

d: The higher efficiency of MFC Explanation

Explanation

4. The electrode material in the MFC should possess:

a: Chemical stability Explanation

Explanation

b: Less electrical conductivity Explanation

Explanation

c: Low surface area Explanation

Explanation

d: None of the above Explanation

Explanation

5. Which of the following (s) contributes to impedance in the MFC ?

a: Electrode distance Explanation

Explanation

b: Biofilm formation Explanation

Explanation

c: Temperature Explanation

Explanation

d: All the above Explanation

Explanation

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