Answer: [ML⁻¹T⁻²].
- A [ML⁻¹T⁻²]
- B [MLT⁻²]
- C [ML²T⁻²]
- D [ML⁻³T⁻²]
Correct answer: A. [ML⁻¹T⁻²]
Explanation: (1/2)ε₀E² is energy density = energy/volume = [ML⁻¹T⁻²], same as pressure.
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.