Question

Rhonda passes through the hair styling stations to get to the front of the salon. She notices that the cord for her coworker's hair dryer is thicker than that for instruments used for skin treatments. She remembers that this is because a hair dryer is rated at more _____ - or amount of electric current - than skin treatment instruments.

a) Voltage
b) Resistance
c) Amperage
d) Conductivity

Answer 1

A hair dryer is rated at more amperage than skin treatment instruments, which is why the cord for a hair dryer is thicker.

Step-by-step explanation:

The cord for a hair dryer is thicker than that for instruments used for skin treatments because a hair dryer is rated at more amperage or amount of electric current than skin treatment instruments. The severity of an electric shock depends on the combination of voltage and resistance. Therefore, a hair dryer, which requires more electrical current, needs a thicker cord to handle the higher amperage.