Colorado Cosmetology Written Practice Exam

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Which machines have two positive electrodes called an anode?

Galvanic
High-frequency
Tesla
Ultrasonic

The correct answer is: Galvanic

Galvanic, High-frequency, Tesla, and Ultrasonic are all types of machines that have different methods of electrical generation, but only Galvanic machines have two positive electrodes called an anode. High-frequency machines utilize glass electrodes and electricity to produce heat and ozone and not anodes. Tesla machines use alternating current and do not require electrodes. Ultrasonic machines use sound waves, not electrodes for their treatment.