If we use permittivity $\varepsilon$, resistance $R$, gravitational constant $G$ and voltage $V$ as fundamental physical quantities, then :
(1) [angular displacement] $=\varepsilon^{1} R^{0} G^{0} V^{0}$
(2) $[$ velocity $]=\varepsilon^{-1} R^{-1} G^{0} V^{0}$
(3) [dipole moment] $=\varepsilon^{1} R^{0} G^{0} V^{1}$
(4) $[$ force $]=\varepsilon^{2} R^{0} G^{0} V^{2}$
