A faradic current is best described as which of the following?
a.An interrupted (pulsating) alternating current that causes mild muscle contractions
b.Continuous high-frequency alternating current that produces heat in tissue
c.Radiant heat produced by an infrared lamp
d.A steady direct current used to push water-soluble products into the skin
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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