Which of the following is not a fundamental quantity?
Correct answer: D. Ampere
- A. Length
- B. Temperature
- C. Electric charge
- D. Ampere
Explanation
Ampere is not a fundamental quantity. It is a derived quantity. Ampere is the unit of electric current, and electric current is defined in terms of the flow of electric charge per unit time. In the SI system, the ampere is defined in terms of the elementary charge and is not considered a fundamental quantity.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
About Measurements
Physical quantities are expressed with SI base and derived units, while measurement limits are described through accuracy, precision, absolute and percentage error, and significant figures. Dimensional analysis checks equations, derives relationships and detects inconsistent units, but it cannot determine numerical constants or distinguish quantities with identical dimensions.
Practise Measurements
262 free Measurements MCQs from Physics, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Physics questions like this
Physics is on 11 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.