Basics of Electricity and Electrical Units Chapter 4

Electricity Question light, heat, chemical and magnetic changes are all produced by material that best transports electricity is an since silver and copper transmit electricity, they are called materials such as glass, rubber or paper around a conductor that does not allow current to pass through is called an which of the following materials does not allow a current to pass though it an ampere is a unit of electric how many milliamperes equal one ampere a volt is a unit of electric a unit of electric resistance is called a measure of how much electric energy is being used is known as a a constant electric current flowing in one direction is called an which of the following devices breaks the flow of current when an overload occurs which of the following of the steps should NOT be followed to break the circuit when a person comes in contact with an electric current? the application of special currents (or modalities) that have a variety of effects on the skin is called a current conductor used to direct the current appliance to the clients skin is called an the direct current used in electrotherapy treatment is the electrode that is negatively charged during an electrotherapy treatment is known as an what temporary effect will a negative electrode pole produce when applying galvanic current during an electrotherapy treatment which of the following is not a temporary effect of the positive pole of galvanic current a treatment in which sebum is broken down or blackheads are liquefied, as in deeppore cleansing is known as when using galvanic current on clients in a salon, what precaution must a salon professional take in order to prevent injury to the client faradic current is used chiefly to cause tesla, a high frequency current is known as the high frequency and alternating current are characteristics of which type of electrotherapy an alternating current that can be adjusted to different voltages to produce heat if the client is holding the active electrode while the salon professional manually stimulates the area being treated , what method of telsa current is being used which of the following will produce a mild, stimulating sensation while using high frequency current treatment with light rays is called which type of light can be broken into its individual wavelengths by a prism which of the following has the longest wavelengths a salon owner wants to mimic natural sunlight as closely as possibly in the salon reception area, which type of light would most likely be used to accomplish this requirement? pure heat rays are produced by which of the following is a benefit of using infrared light during a facial the average distance an infrared lamp should be places during a facial is about which of the following are known as actinic rays which of the following is a benefit derived from the UV light small doses of ultraviolet light may help the body produce Answer electricity conductor conductors insulator alcohol strength 1,000 pressure ohm watt direct current circuit breaker touch the person to ground the circuit electrotherapy electrode galvanic cathode increase in blood flow softens tissues desincrustation do not use over an area having broken capillaries muscle contractions violet ray telsa high frequency indirect application slightly separating the electrode from the skin light therapy combination infrared rays fluorescent light infrared rays increases circulation 30" ultraviolet small doses tan the skin vitamin d bacteria that cause the skin infections can be killed by before using ultraviolet light on a client, the skin or scalp should be materials that do not allow a current to pass is called an ultraviolet light cleansed insulator