ABSTRACT
How does a defi brillator work? ➤ Delivers DC shock instead of AC (less myocardial damage and less arrythmogenic). ➤ Uses 5000 V (this is much greater than that of the mains electricity and is produced
using a step-up transformer). ➤ Capacitor is used to store charge. It consists of two conducting plates separated by an
insulating material (dielectric). Capacitance is measured in farads (F). The amount
the dielectric material. They have a low reactance to AC (i.e. passes AC) but a high resistance to DC (i.e. blocks DC).
