Multiple choice

The current for facial and scalp treatments is measured in:

  1. watts

  2. kilowatts

  3. voltages

  4. milliamperes

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Facial and scalp treatments require very low current levels, which are measured in milliamperes (mA). Watts and kilowatts are too large for these specific applications.