Question

Which of the following is a derived unit in the SI system?

• A. Candela
• B. Kelvin
• C. Mol
• D. Coulomb

Hint:

Derived SI units = combinations of base units (e.g., N, J, C). Base units = 7 defined standards (kg, s, m, etc.).

Answer 1

The Correct Option is D

Coulomb is a derived SI unit of electric charge and is defined as: \[ 1\ \text{C} = 1\ \text{A} \cdot \text{s} \] Candela, Kelvin, and Mol are fundamental (base) SI units.