SI units, dimensional analysis, error analysis, significant figures.
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Q1 · Units and Measurement · EASY
The dimensional formula for electric charge is
Q2 · Units and Measurement · MEDIUM
If the percentage error in measuring the radius of a sphere is 2%, what is the percentage error in measuring its volume?
Q3 · Units and Measurement · HARD
The dimensions of (μ₀ε₀)^(-1/2) where μ₀ is the permeability of free space and ε₀ is the permittivity of free space, are