What are the SI base units of the permittivity of free space, ε0\varepsilon_0ε0?
kg−1m−3s4A2\text{kg}^{-1}\text{m}^{-3}\text{s}^{4}\text{A}^{2}kg−1m−3s4A2
kg−1m−3s3A2\text{kg}^{-1}\text{m}^{-3}\text{s}^{3}\text{A}^{2}kg−1m−3s3A2
kgm3s−4A−2\text{kg}\text{m}^{3}\text{s}^{-4}\text{A}^{-2}kgm3s−4A−2
kg−1m−3s3A\text{kg}^{-1}\text{m}^{-3}\text{s}^{3}\text{A}kg−1m−3s3A
29 exam-style questions on OCR A A Level Physics Physical quantities and units, covering Physical quantities and S.I. units. Each one has a worked solution and a mark scheme showing where the marks go.