In the United States alternating current, or AC, wins over direct current, or DC, as a source of electricity because it is more efficient; the voltage of the current is easy to manipulate. However, direct current is used for computers, batteries and LEDs, according to the U.S. Department of Energy.
Alternating current, developed by Nikola Tesla, has a current that reverses 60 times per second. This creates a larger amount of induction than a current flowing continuously in one direction. Power plants send AC power efficiently to buildings at a high voltage with little resistance. A transformer then lowers the voltage for safe use with everyday products.Learn More
A full-wave bridge rectifier is twice as efficient of a half-wave rectifier, it has a higher output power and higher output voltage, the transformer utilization factor is higher than in a single-tap rectifier and the core will have no problems due to DC saturation. The full-wave bridge rectifier is getting more popular due to these advantages over half-wave and center-tap rectifiers.Full Answer >
A low voltage electrocardiogram result can be caused by a problem in the heart's ability to generate electricity or can be due to the presence of fluid or air in the chest between the electrodes and the heart. Chronic heart diseases, such as cardiomyopathy, can cause low voltage ECGs.Full Answer >
Alternating current, or AC, power is a type of electrical current that alternates between a positive and negative charge and flow. AC power differs from the other main type of current, DC, which is a direct current that always flows in one direction between the positive and negative terminals.Full Answer >
A fresh, single AA battery supplies between 1.2 to 1.65 volts, depending on its composition. Nickel-metal hydride and nickel cadmium batteries put out 1.2 volts and are rechargeable. Lithium, zinc-carbon and alkaline batteries put out 1.5 volts but are not rechargeable. Nickel-zinc batteries put out 1.65 volts.Full Answer >