New Jersey State Board Esthetics Practice Exam

Disable ads (and more) with a membership for a one time $2.99 payment

Prepare for the New Jersey State Board Esthetics Exam. Study with flashcards and multiple choice questions, each providing hints and explanations. Get confidently ready for your exam!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

What is the unit of measurement for electric resistance?

Volts
Ohms
Amperes
Watts

The correct answer is: Ohms

The unit of measurement for electric resistance is ohms. This is named after the German physicist Georg Simon Ohm, who formulated Ohm's Law, which describes the relationship between voltage, current, and resistance in an electrical circuit. In this context, resistance refers to the opposition that a substance offers to the flow of electric current. Understanding ohms is essential in fields such as esthetics, particularly when dealing with electrical devices used for skincare treatments, as proper usage requires knowledge of electrical parameters to ensure safety and effectiveness. The other units mentioned—volts, amperes, and watts—measure different quantities in electrical contexts; volts measure electric potential, amperes measure current, and watts measure power.