Current is measured in which unit?

Current is measured in amperes, commonly referred to as amps. This unit quantifies the flow of electric charge in a circuit, specifically indicating how many electrons are passing a given point in the conductor per second. Understanding this unit is fundamental in electrical theory and practice, as it helps indicate the strength of the electric current that powers devices and systems.

The other units mentioned relate to different electrical concepts; volts measure electrical potential (voltage), ohms measure resistance, and pascals refer to pressure in physics. Each of these units plays a critical role in understanding electrical and physical systems, but amps specifically denote the flow of electric current, making it the correct choice for this question.