Electricity, the flow of electric charge, powers much of the technology used in modern society. The Energy Information Administration explains that electricity is a secondary source of energy, meaning that it comes from the conversion of other energy sources.Know More
Wikipedia enumerates the many uses of electricity in both human technology and the natural world. Electricity provides heat and private and public lighting. Electricity is vital to many appliances, like televisions, radios, computers, refrigerators and washing machines. Even automobiles use electricity and have a battery for this purpose. In nature, animals use voltage pulses to transmit information along their cell membranes. Additionally, electricity can be used to revive someone. When a person's heart stops beating, physicians often stimulate it with a device known as a defibrillator, which sends an electrical pulse.
Energy Quest of California states that the flow of electric charge occurs when atoms lose and gain electrons, the charged particles that surround the nucleus.
According to energy provider Pacific Power, electricity travels through the path of least resistance. Materials that allow the free flow of electricity are called conductors. Common insulators are metal, water and moist objects like plants and people. Insulators are materials that do not conduct electricity; they include rubber, plastic and glass.Learn more in Electricity
Electricity is the flow of electrons through a conductor. Materials that conduct electricity easily have a weak hold on their outermost electrons, allowing them to move easily from one atom to another. When an electron moves to an adjacent atom, it displaces another electron, and this flow is electric current.Full Answer >
The abbreviation "mA" denotes the International System unit for electrical current known as the milliampere. One milliampere is equal to one-thousandth of an ampere. The unit is named for the 18th and 19th century French physicist Andre-Marie Ampere, who studied electromagnetism.Full Answer >
According to the Occupational Safety & Health Administration, electricity is dangerous because it can cause burns, nerve damage, cardiac arrest and death. Alliant Engery also notes that the majority of the human body is composed of water, which makes it a good conductor of electricity.Full Answer >
Electricity is a concept that was discovered in part by many experts and scientists adding to its development throughout history. In fact, electricity is actually a force of energy that occurs in nature; thus, electricity was not invented, but rather discovered.Full Answer >