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Which of the following changes alternating current to direct current? Rectifier
The effect that is created when an electric current travels through a water-based solution in order
to produce relaxing or stimulating results is known as: electrochemical
Which of the following actions will produce a mild, stimulating sensation while using high-
frequency current? Slightly separating the electrode from the skin
What type of outlet is recommended for installation in any area where water and electricity could
come into contact? GFCI
Materials that best transport electricity are called: conductors
Which of the following descriptions is a benefit of using infrared light during a facial?
Increases circulation
, Cords on appliances should be kept straight and free of knots, kinks, and tangles to prevent:
breaks
A unit of electric resistance is called a(n): Ohm
The application of special currents that have a variety of effects on the skin is called:
Electrotherapy
Which of the following statements is true of visible light? waves hit an object and are
either absorbed or reflected
When using galvanic current, what precaution must a salon professional take in order to prevent
injury to the client? Do not use over an area with many broken capillaries
volt is a unit of electric: pressure
Volts and frequency needed and watts the appliance consumes are indicated on the:
nameplate