Answer: the ampere.
- A the ampere
- B the volt
- C the ohm
- D the watt
Correct answer: A. the ampere
Explanation: The ampere (A) is the SI base unit of electric current.
The 7 SI base units. All derived units (newton, joule, watt, volt, etc.) can be expressed as combinations of these 7 fundamental units raised to various powers.
Concept context
SI base units, dimensional analysis, significant figures, and error propagation. The toolkit every physics calculation relies on.