Electrical Theory & Current
What term defines the movement of electrons from one atom to another along a conductor?
Answer: What is electricity?
What unit measures the pressure or force that pushes the electric current forward through a conductor?
Answer: What is a volt (voltage)?
What apparatus changes direct current (DC) to alternating current (AC)?
Answer: What is an inverter?
What constant and direct current has positive and negative poles and produces chemical changes when passed through body tissues and fluids?
Answer: What is Galvanic current?
What term encompasses all forms of energy in the electromagnetic spectrum?
Answer: What is electromagnetic radiation?
What is the flow of electricity along a conductor called?
Answer: What is an electric current?
What unit measures the strength of an electric current?
Answer: What is an ampere (amp)?
What apparatus changes alternating current (AC) to direct current (DC)?
Answer: What is a rectifier?
What Galvanic process infuses a water-soluble product into the skin using the positive pole (cataphoresis)?
Answer: What is iontophoresis?
What part of the electromagnetic spectrum can be seen with the naked eye and makes up about 35 percent of sunlight?
Answer: What is visible light?
What type of material does not transmit electricity, such as rubber, silk, wood, glass, and cement?
Answer: What is a nonconductor (or insulator)?
What unit measures the resistance of an electric current?
Answer: What is an ohm?
What safety device automatically shuts off or breaks an electric circuit at the first indication of an overload or short circuit?
Answer: What is a circuit breaker?
What process infuses an alkaline product from the negative pole into the skin to soften andze/liquefy grease deposits?
Answer: What is anaphoresis?
What invisible light has longer wavelengths, penetrates deeper, produces more heat, and is used for muscle relaxation?
Answer: What is infrared light?
What constant, even-flowing current travels in only one direction and is produced by chemical means?
Answer: What is direct current (DC)?
What unit measures how much electric energy is being used in one second?
Answer: What is a watt?
What safety device is designed to detect currents of a few milliamperes and trip a breaker to remove shock hazards at receptacles?
Answer: What is a ground-fault interrupter (GFI / GFCI)?
What extremely low level of electricity mirrors the body's natural electrical impulses to tone, soothe, and heal the skin?
Answer: What is microcurrent?
Answer: Ultraviolet (UV) light.
What rapid and interrupted current flows first in one direction and then in the opposite direction, changing directions 60 times per second?
Answer: What is alternating current (AC)?
What unit of measurement is equal to 1/1,000 of an ampere and is used for facial and scalp treatments?
Answer: What is a milliampere?
All electrical appliances you use should be certified by which organization?
Answer: What is Underwriters Laboratories (UL)?
What thermal or heat-producing current with a high rate of oscillation is commonly called the "violet ray"?
Answer: What is Tesla high-frequency current?
Which type of UV light is often referred to as the "burning light" and is commonly used in tanning beds?
Answer: What is Ultraviolet A (UVA) light?