Discover the Mathematical Equations for Electrode Resistances

  • Thread starter chpolyz
  • Start date
  • Tags
    Electrodes
In summary, the resistance of an electrode is the measure of its opposition to the flow of electric current and is affected by factors such as material, size, and temperature. This resistance can affect electrode performance by either decreasing or increasing current flow. There are two types of resistance, internal and external, which can both impact electrode performance. The resistance of an electrode can be measured using a multimeter or specialized equipment like an impedance analyzer. Various factors such as material, size, surrounding medium, temperature, and type of electrical current can affect electrode resistance.
  • #1
chpolyz
6
0
Where can I find a set of equations that describe mathematically the resistance of various types of electrodes (e.g. hemispherical, conic, etc)?

Thank you in advance!
 
Engineering news on Phys.org
  • #2
Look up "spreading resistance." You'll find the hemisphere and disk are the most widely used (for semiconductor contacts, e.g.). I haven't seen other shapes.
 

1. What is the resistance of an electrode?

The resistance of an electrode refers to the electrical resistance, which is the measure of the opposition to the flow of electric current through the electrode. It is measured in ohms (Ω) and is affected by factors such as electrode material, size, and temperature.

2. How does resistance affect electrode performance?

The resistance of an electrode can affect its performance in several ways. High resistance can lead to a decrease in current flow, resulting in a weaker or slower response from the electrode. Low resistance can cause an increase in current flow, which may lead to overheating and damage to the electrode.

3. What is the difference between internal and external electrode resistance?

Internal electrode resistance refers to the resistance within the electrode material itself, while external electrode resistance refers to the resistance at the interface between the electrode and the surrounding medium. Both types of resistance can affect the overall performance of an electrode.

4. How do you measure electrode resistance?

Electrode resistance can be measured using a multimeter, which measures the voltage drop across the electrode and the current flowing through it. The resistance is then calculated using Ohm's law (R=V/I). Alternatively, specialized equipment such as an impedance analyzer can also be used to measure electrode resistance.

5. What factors can affect the resistance of an electrode?

The resistance of an electrode can be affected by various factors, including the material and size of the electrode, the surrounding medium, temperature, and the presence of impurities or coatings on the electrode surface. Additionally, the type of electrical current being applied (DC or AC) can also impact the electrode resistance.

Similar threads

  • Electrical Engineering
Replies
3
Views
2K
  • Electrical Engineering
Replies
1
Views
723
  • Electrical Engineering
Replies
4
Views
1K
  • Beyond the Standard Models
Replies
6
Views
897
Replies
5
Views
387
  • Electrical Engineering
Replies
8
Views
1K
  • Electrical Engineering
Replies
1
Views
965
  • Electrical Engineering
Replies
5
Views
2K
  • Electrical Engineering
Replies
4
Views
3K
Replies
2
Views
1K
Back
Top