The unit of measure for electric current is the ampere, often shortened to "amp." It is a fundamental unit in the International System of Units (SI) and is used to quantify the flow of electric charge in a circuit. One ampere is defined as one coulomb of charge passing through a point in a circuit in one second. Electric currents are crucial for the functioning of various electrical devices and systems, from household appliances to industrial machinery. Understanding amps is essential for engineers and electricians when designing and troubleshooting electrical systems.