Which of the following is NOT a fundamental SI unit? MCQ with Answer and Explanation

Which of the following is NOT a fundamental SI unit?
A. Kelvin
B. Candela
C. Coulomb
D. Ampere
Answer: Option C
Solution (By JKSSB Mock Tests)
Coulomb is the SI unit of electric charge, but it is a derived unit (Ampere × second). The seven fundamental SI units are meter (length), kilogram (mass), second (time), Kelvin (temperature), Ampere (electric current), candela (luminous intensity), and mole (amount of substance). Electric current is fundamental, making Ampere fundamental, not Coulomb.

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Correct Answer: Option A


Explanation:
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Correct Answer: Option B


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Correct Answer: Option C


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