A defibrillator is used by emergency medical staff to shock the heart of an accident victim by applying a 10,000-V potential difference across the victim’s chest.
(a) If the defibrillator has an internal resistance of 10 Ω and the victim’s heart has a resistance of 300 Ω, what is the current that passes through the victim’s heart the moment the defibrillator is discharged?
(b) If the defibrillator delivers this current over a 10-ms time interval, how many electrons pass through the heart during this process?