chapter 7 Electricity- video lecture

What is the primary reason beauty professionals need to understand electricity?

• To design electrical circuits

• To repair electrical appliances

• To safely use and maintain tools and equipment

• To avoid using electrical devices

Are you enjoying the video lesson?

• Yes

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Which unit measures the pressure that pushes electric current through a conductor?

• Watt

• Volt

• Ampere

• Ohm

What should you do if an electrical appliance sparks when plugged in?

• Stop using the appliance and consult a certified electrician

• Use a different outlet

• Repair the appliance yourself

• Continue using the appliance

What is the purpose of galvanic current in electrotherapy?

• To generate heat for relaxation

• To stimulate blood circulation

• To infuse water-soluble products into the skin

• To produce muscle contractions

Which type of ultraviolet light is blocked by the ozone layer and kills bacteria?

• Infrared light

• Ultraviolet C

• Ultraviolet B

• Ultraviolet A