102.9 Principles of Electricity
What is the term used for measuring the strength of electric current?
Amp or Ampere
This the term used in measuring how much electric energy is being used in 1 second?
Watt or Wattage
Electric current can produce three kinds of effects during cosmetology services. They are what?
Heating Magnetic and electrochemical effects
This is the process of introducing water-based products for deeper penetration into the skin?
iontophoresis
When using UV light clients eyes should be what ?
Protected with eye wear Goggles or eyepads
what is the term used for measuring the resistance of electric current?
ohm
This is the power source most often used in a salon which produces Alternating Current?
Generator
There are four types of current used in Electrotherapy EMS also known as faradic, Microcurrent also Sinusoidal & what?
Galvanic & High-Frequency or Tesla
All electrotherapy applicators have a negatively charged electrode called what ?
a Cathode
What is the technical name for any electrically powered appliance ?
A Load
An Insulator or what is a substance that does not easily transmit electricity?
Non Conductor
The 2 common sources of electric current are what?
Batteries and Generators
This is an apparatus that conducts the electric current from the machine to the clients skin?
An electrode or probe
All electrotherapy applicators have a positively charged electrode called what ?
An anode
What can occur any time if a foreign conductor comes in contact with a wire carrying current to the appliance?
Short Circuit
What electric current flows first in one direction and then in the other direction?
AC or Alternating Current
The path of electrons flow from the source to operate an appliance?
Closed circuit
List the three methods for using High-Frequency?
General Electrification, Direct & Indirect application
What are the two types of Invisible Light rays?
Infrared & Ultraviolet light rays
For fire extinguisher use remember what key word ?
P for pull A for aim S for squeeze and S for spray PASS
What apparatus changes alternating current to direct current?
Rectifier
There are two ways circuits can be connected to power loads. List them?
Parallel wiring Series wiring
This is an acronym for '' light amplification simulation emission of radiation"
Laser
Exposure times range from 5 to 15 minutes for light rays. The light must placed at how many inches from clients face ?
30 inches
LED is available as a White light source. They have an average life expectancy of how many hours ?
20,000 hours