Electricity & EquipmentQuestion 94 of 484
A faradic current is best described as which of the following?
a.A steady direct current used to push water-soluble products into the skin
b.Continuous high-frequency alternating current that produces heat in tissue
c.An interrupted (pulsating) alternating current that causes mild muscle contractions
d.Radiant heat produced by an infrared lamp
Explanation
Faradic current is an interrupted or pulsating alternating current. Its short pulses cause visible muscle contractions, which is why it has historically been used for facial muscle toning.
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