1. What is Faradic Current?

Definition: Faradic Current is defined as the current formed due to the traces of impurities in electrochemical systems.

Purpose: This calculator helps determine the faradic current based on residual current and condenser current measurements.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( i_f \) — Faradic Current (Amperes)
• \( i_r \) — Residual Current (Amperes)
• \( i_c \) — Condenser Current (Amperes)

Explanation: The faradic current is calculated by subtracting the condenser current from the residual current.

3. Importance of Faradic Current Calculation

Details: Accurate measurement of faradic current is crucial in electrochemical studies to understand the true current due to redox reactions, separate from background currents.

4. Using the Calculator

Tips: Enter the residual current and condenser current values in amperes. Both values must be ≥ 0.

5. Frequently Asked Questions (FAQ)

Q1: What is residual current?
A: Residual current is the current that flows in the absence of the depolarizer (i.e., due to the supporting electrolyte).

Q2: What causes condenser current?
A: Condenser current is due to the formation of Helmholtz double layer at the electrode surface.

Q3: Can faradic current be negative?
A: Yes, if the condenser current exceeds the residual current, indicating specific electrochemical conditions.

Q4: How are these currents typically measured?
A: Using electrochemical techniques like polarography or voltammetry with appropriate instrumentation.

Q5: Why is it important to separate faradic current?
A: It allows researchers to study only the current related to electrochemical reactions, excluding capacitive effects.