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.
Power is the rate at which energy is generated, used, or moved. 1 watt of power means 1 joule of energy per second.    The definition of power is to be able to direct oâ¦r influence a  course of events or the behavior of others. 8 people found this useful.