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Q:

# How fast does electricity travel?

A:

Electricity travels at the speed of light, which is 186,000 miles per second. This is because electricity is electromagnetic radiation just like light. Electricity is the flow of electrons through a conducting wire such as copper and aluminum.

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Electrons travel at varying speeds depending on the type and thickness of the conductor. The flow of electrons is slowed down, as the electrons have to pass through billions of atoms of the conductor. However, it is the wave of electric current that travels at the speed of light and not the electrons.

The resistivity of different conductors to the flow of electricity is different. This is why aluminum and copper are better conductors than iron and steel.

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Electricity moves through a circuit according to the polarity, or charge, of the power source and the various loads in the circuit. The power source of a circuit has positively charged and negatively charged terminals. Electricity is the flow of electrons, which have a negative charge.

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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.

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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.

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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.