Barbering Basics of Electricity

2. ___ rays are used in tanning booths and penetrate deeply into the skin tissue.
7. ___ rays are applied between 30 to 36 inches from the skin.
9. The light that produces germicidal and chemical benfits is ___ light.
11. The flow of electricity along a conductor is known as an electrical ___.
13. Treatment by means of light rays.
16. Ultraviolet rays produce ___ effects.
18. The unit of electrical pressure, which pushes the flow of electrons through a conductor.
20. The different types of currents used in facial and scalp treatments.
21. The ohm is the unit of electrical ___.
22. All electrical appliances used in the barbershop should be ___-certified.
23. A ___ current is a constant, even-flowing current that travels in one direction.
24. A ___ is an apparatus that changes direct current to alternating current.
25. The high-frequency current commonly used in the barbershop is the ___ current.

1. Visible light makes up about 35% of natural ___.
3. Electric clippers and hair dryers are examples of barbering tools that use ___ current.
4. High-frequency electrodes are made of ___or metal.
5. A ___ is a safety device that prevents excessive current from passing through a circuit.
6. The light that produces heat and creates a stimulating effect is ___ light.
8. Rubber or silk may serve as an ___.
10. On average, ___rays are applied 30 inches from the skin.
12. An adjustable resistor that is used for controlling the current in a circuit.
14. An ___ is an applicator that directs electric current from the machine to the client's skin.
15. The current used in facial and scalp treatments is measured in ___.
17. The ampere is the unit for measuring the ___ of an electric current.
19. A metal, such as copper wire, serves as a ___.