BASICS OF ELECTRICITY Worksheet

positive or negative state of electric current
positive pole
negative pole
constant and direct current
extremely low level of electricity that mirrors the body's natural electrical impulses
infuses an acidic (negative) product into the tissue from the negative pole toward the positive pole
process of introducing water-soluble products in the skin with the use of electric current
also known as violet-ray thermal or heat producing current
distance between successive peaks of electromagnetic waves
light is blocked by the ozone layer
light at either end of the visible spectrum of light that invisible to the neaked eye
has the longest length of the UV light spectrum
longer wavelengths penetrates more deeply, has less energy and produces more heat
light that is often called the burning light associated with sunburns
also known as phototherapy