 A human body by itself typically has a capacitance of around 250 pF , which would mean a voltage of 30,000 V would produce energy of 0.11 joules .
<clarity>  A human body by itself typically has a capacitance of around 250 pF , which would mean a voltage of 30,000 V would produce energy of 0.11 joules .
 A human body by itself typically has a capacitance of around 250 , which would mean a voltage of 30,000 V would produce energy of 0.11 joules .