The ESU unit of charge, franklin (Fr), also known as statcoulomb or esu charge, is therefore defined as follows: Therefore, in electrostatic CGS units, a franklin is equal to a centimetre times square root of dyne:: formula_43.
Sistem enot CGS (tudi sistem enot centimeter-gram-sekunda) je metrični sistem, ki ima za osnovne enote centimeter za dolžino, gram za maso in sekundo za čas.