Physical quantities that are independent of each other are known as

Electrical Engineering XYZ MCQs

Physical quantities that are independent of each other are known as:

1. Numerical quantity
2. Fundamental quantity
3. Derived quantity
4. None of the above

Correct answer: 2. Fundamental quantity

Explanation: Fundamental quantities are basic physical quantities that are defined independently of other quantities. These quantities form the foundation upon which other, more complex quantities (known as derived quantities) are defined. Fundamental quantities are typically measured using a set of predefined units and are considered independent because their definitions do not rely on other quantities.

For example, in the International System of Units (SI), fundamental quantities include length (meter), mass (kilogram), time (second), electric current (ampere), temperature (kelvin), amount of substance (mole), and luminous intensity (candela). Each of these quantities is measured independently of the others.