Current is the electric charge in motion. Current as a rate quantity would be expressed as I = Q / t. The standard metric unit for current is the ampere and is abbreviated by the unit symbol A. A current of 1 Ampere means that there is 1 coulomb of charge passing through a cross section of a wire every 1 second.

Units of Current

• Ampere
• Kiloampere
• Milliampere
• Microampere
• Nanoampere

Facts about electric current

• The ammeter is the tool that measures the current in a circuit..
• To visualise the flow of electric current through a wire, you can think of the flowing of water through a pipe. 
• Lightning is a discharge of electricity in the atmosphere. Lightning bolts can travel at about 130000 miles per hour.

For more information, formulas and other conversions you can use our free Current Converter.