Electricity Flashcards

1
Q

What is the distance out which ultraviolet rays should be applied

A

30-36 inches

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2
Q

During use ______ current has an electrochemical affect

A

Galvanic

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3
Q

What has a wire or strip that melts when to much current flows which interrupts a circuit in which is connected

A

Fuse

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4
Q

In physics what has electromagnetic waves in space

A

Radiation

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5
Q

What percentage of sunlight is made of visible light

A

0%

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6
Q

What is the unit of electrical resistance

A

Ohm

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7
Q

The SI unit for measuring the rate of flow of electric charge is the

A

Ampere

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8
Q

What does grounding do

A

Safely carries the current to the ground

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9
Q

Electromagnetic radiation is also known as

A

Radiant energy

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10
Q

What is true regarding incandescent lighting

A

It is the closest substitute for natural lighting

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11
Q

What is the process of using the positive electrode to force acidic solution to penetrate into the skin without breaking the skin

A

Cataphoresis

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12
Q

What type of light therapy will penetrate more than 2 inches into the body

A

Infrared light

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13
Q

The constant unidirectional and even flow of electrical charge is

A

Direct current

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14
Q

What is the power source most often used in salons

A

Generator

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15
Q

What is true regarding series wiring

A

Do user is forced to have all those running at the same time with series wiring

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16
Q

The electrical current measurement used during scalp and facial treatments is

A

Milliamperes

17
Q

What changes alternating current to direct current

A

A rectifier

18
Q

What controls or regulates the strength of the current used

A

Rheostat

19
Q

Different lamps and bulbs will produce varying amounts of UV light depending on their what

A

Circuitry

20
Q

What type of electrical affect a hairstylist experience from using electric clipper

A

Mechanical

21
Q

How many amps in a circuit does it take to operate an appliance at 100 Watts

A

1amp

22
Q

Electrochemical affects happen when an electric current travel through a ______ conductor

A

Liquid

23
Q

What is true regarding galvanic current electrotherapy

A

It should not be used over an area that has many broken capillaries

24
Q

What does a higher amp signify

A

A larger flow of charge in a stronger electric current

25
Q

The underwriters laboratory (UL) certification

A

Ensures the safety of an electrical appliance

26
Q

The unit of measurement for how much electric energy is used in a second is named after James _____

A

Watt

27
Q

When water soluble products are introduced into the skin by using electric current the process is known as

A

Iontophoresis

28
Q

Current will not flow through a conductor unless the forces stronger than

A

The ohms

29
Q

Which type of current creates chemical changes by passing the current through special alkaline or acid solutions and or passing the current through human bodily fluids or tissues

A

Galvanic current

30
Q

What is an example of closing a circuit

A

Flipping on the light switch