This type of coma is usually reversible once the blood sugar is corrected. Oxygen deprivation: Oxygen is essential for brain function. Cardiac arrest causes a sudden cutoff of blood flow and oxygen to the brain, called hypoxia or anoxia.
The external power supply is the AC power adapter that converts household AC electricity voltages to the much lower DC voltages needed to charge a mobile phone's internal battery.
HowToAV explains 'Phantom Power' - the industry standard method of transmitting DC voltage over an audio cable to provide power to professional audio devices... HowToAV explains 'Phantom Power' - the industry standard method of transmitting DC voltage over an audio cable to provide power to professional audio devices... Skip navigation Sign in