First slide
Dimensions of physical quantities
Question

Using mass (M), length (L), time (T), and electric current (A) as fundamental quantities, the dimensions of permittivity will be

Easy
Solution

By Coulomb's laws, F=14πε0×q1q2r2

          ε0=q1q24π×F×r2

Taking dimensions, ε0=(AT)(AT)ML1T2×L2=M1L3T4A2

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