In the Operation of Electrical Circuits, Which, in Most Cases

question 63

Multiple Choice

In the operation of electrical circuits, which, in most cases, is an unwanted by-product?

• A)heat
• B)mechanical motion
• C)light
• D)both B and C

---

Definitions:

Chemical Properties

Characteristics of a substance that become evident when it undergoes a chemical change or reaction, such as acidity or combustibility.

Isoprene Units

Five-carbon hydrocarbon monomers that make up certain lipids such as carotenoids and steroids.

Carotenoids

A class of pigments found in plants that are responsible for yellow, orange, and red colors and play roles in photosynthesis and photoprotection.

Steroids

Complex molecules containing carbon atoms arranged in four attached rings, three of which contain six carbon atoms each and the fourth of which contains five (e.g., cholesterol and certain hormones, including the male and female sex hormones of vertebrates).