Electricity Flashcards

1
Q

 A _____ Is a device which has a wire or strip that melts when to much current flows, which interrupts the circuit in which it is connected

A

Fuse

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2
Q

During use, _____ Current has an electrochemical effect

A

Galvanic

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3
Q

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

A

Iontophoresis

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4
Q

Which of the following is true regarding series wiring

A

 The user is forced to have all loads running at the same time with series wiring

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5
Q

Which of the following is true regarding galvanic current electrotherapy

A

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

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6
Q

The underwriters laboratory (UL) certification

A

Ensures the safety of an electrical appliance

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7
Q

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

A

Circuitry

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8
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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9
Q

Which of the following is true regarding grounding

A

It safely carries current to the ground

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10
Q

Current will not flow through a conductor unless the force is stronger than

A

The ohms

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11
Q

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

A

Infrared

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12
Q

Which of the following is a unit of electrical resistance

A

Ohm

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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

Electrochemical affects happen when an electric current travels through a___conductor

A

Liquid

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15
Q

The SI Unit for measuring the rate of flow of electrical charge is the

A

Ampere

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16
Q

During___, both the client and the cosmetologist need to wear protective eyewear during treatment

A

Ultraviolet light (uv)therapy

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17
Q

How many amps in the circuit does it take to operate an appliance at 100 watts

A

1 amp

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18
Q

Which of the following are examples of liquid conductors

A

Bodily fluids, liquids where ions are present, and alkali solutions

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19
Q

Normally, electric wires are enclosed by a rubber material used for the purpose of insulation or for being

A

Nonconductor

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20
Q

A _____ Changes alternating current and direct current

A

Rectifier

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21
Q

A ____ Is a device that controls or regulates the strength of the current used

A

Rheostat

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22
Q

Which of the following can conduct an electric current

A

The human body, carbon, and salts

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23
Q

A short circuit could occur when

A

A foreign conductor comes into contact with a wire that is caring currents, and appliance is dropped in water, or two cords or bend and twist it enough to break the copper wires in the cords

24
Q

A wavelength with low frequency has

A

A smaller number of waves

25
Q

Which describes an insulator

A

Material which resist the transmission of electricity

26
Q

Heat, white, chemical and magnetic changes are produced by

A

Electricity

27
Q

Of the following which is an example of closing a circuit

A

flipping on the light switch

28
Q

Appliances for other countries have different capital HZ ratings and cannot be operated in the US without a/an

A

Adapter

29
Q

Electromagnetic radiation is also known as

A

Radiant energy

30
Q

In physics,___is/are electromagnetic waves in space

A

Radiation

31
Q

Which of the following applies to Cataphoresis

A

Soothing to nerves, slows the flow of blood, and decreases the redness of simple blemishes

32
Q

Electricity is a form of

A

Energy

33
Q

When the movement or flow of electric current periodically reverses direction, it is

A

Alternating current

34
Q

_____ Is the distance at which ultraviolet rays should be applied

A

30 to 36 inches

35
Q

The three types of electrically powered equipment used in a salon are either mechanical, thermal or

A

A combination of mechanical and thermal

36
Q

The flow of electric charge in a conductor such as wire is

A

Electric current

37
Q

Which of the following best describes a circuit breaker

A

A device that breaks the flow of current when an overload takes place

38
Q

If a fuse becomes___, it is possible that there are too many appliances on one circuit

A

Overloaded

39
Q

Which of the following is true regarding infrared rays

A

They are invisible and they are pure heat rays

40
Q

What percentage of sunlight is made of visible light

A

None of the choices listed

41
Q

Which is true regarding incandescent lighting

A

It is the closest substitute for natural lighting

42
Q

Do you know a measurement for how much electric energy is used in a second, is named after James

A

Watt

43
Q

What is the power source that is used the most often in salons

A

Generator

44
Q

A ____ can be used to break white light down into its individual wavelengths, or spectral colors

A

Prism

45
Q

Electricity is the mobility and flow of___between atoms

A

Electrons

46
Q

What does a higher amp signify

A

A larger flow of charge and a stronger electric current

47
Q

The part of the electromagnetic spectrum which humans can view is known as

A

Visible

48
Q

Skin cancer can result from overexposure to

A

Ultraviolet

49
Q

____are an Example of solid conductors

A

Metals

50
Q

Tesla current therapy is believed to

A

Increase metabolism rate, increased sebaceous gland activity, and improve blood circulation

51
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 body fluids and tissues

A

Galvanic

52
Q

Which of the following will cause muscle contractions and burns when passing through a small part of the body

A

Local shock 

53
Q

The electrical current measurement used during scalp and facial treatment is

A

Milliamperes

54
Q

Which type of electrical effect do hairstylist experience from using an electric clipper

A

Mechanical

55
Q

Which of the following should be done when installing a new fuse

A

Make sure all appliances operating on that circuit are turn off and remove the blown fuse then replace it with a new fuse