What is the SI unit for electric current?

The SI unit for electric current is the ampere, often abbreviated as "A." The ampere is one of the seven base units in the International System of Units (SI) and is defined as the constant current that, if maintained in two straight parallel conductors of infinite length and negligible circular cross-section, would produce a force equal to 2 × 10^-7 newtons per meter of length between these conductors in a vacuum. This unit is fundamental for measuring the flow of electric charge in a circuit, where one ampere equates to one coulomb of charge passing through a given point in the circuit per second. Understanding the ampere is crucial for analyzing electrical systems and components, making it the standard measurement used in various applications ranging from household appliances to complex technological devices. Other units mentioned, like ohms (unit of resistance), volts (unit of electric potential), and watts (unit of power), serve different purposes in the field of electricity, but do not represent electric current directly.