The U.S. Navy offers enlistees a chance to serve in more than 60 different job fields. One of the largest job fields, or ratings, in the U.S. Navy is hospital corpsman, or Navy corpsman..
Cell voltage. The standard electrical potential of a cell can be determined by the use of a standard potential table for the two half cells involved. The first step is to identify the two metals reacting in the cell. Then one looks up the standard electrode potential, E0, in volts, for each of the two half reactions.
Potassium is the major cation (positive ion) inside animal cells, while sodium is the major cation outside animal cells. The difference between the concentrations of these charged particles causes a difference in electric potential between the inside and outside of cells, known as the membrane potential.