Question

The electrodes that you attached to your skin have a “gel” in the center that touches the skin. What is the purpose of this gel and what substance(s) would you want to be present in the gel to improve electrical conductivity?

Answer 1

The electrodes that you attached to your skin have a “gel” in the center that touches the skin -

Step-by-step explanation:

Gel facilitates and improve the quality of the signals transmitted to the recording device as well as it helps in conduction between the skin and the electrodes of the machine. ECG gel contains components that transmits electrical activity via a person skin. This is done by the use of electrodes to get accurate results.

Gel is designed for medical purposes like ECG/EKG/EMG.

Substances present in gel are water, sodium chloride ,sodium hydroxide,mineral oils,stearyl alcohol and carbomer. These substances enhances electrical conductivity.