How is 1 ampere defined in terms of coulombs?

1 ampere is defined as the flow of electric charge of one coulomb per second. This definition is rooted in the International System of Units (SI), where the ampere is the base unit for electric current. Essentially, if a current of 1 ampere is present, it means that 1 coulomb of charge is moving through a conductor every second.

Understanding this definition is important in various applications, including medical imaging techniques like fluoroscopy, where electric current is fundamental to the operation of devices. The option that states "1 coulomb/second" accurately reflects the fundamental relationship between current and charge, aligning with how electrical measurements are standardized.

The other options refer to different time frames (minute, hour, millisecond), which do not represent the standard definition of an ampere. Each of those would indicate a different, mathematically derived unit of current, but none match the established definition of one ampere as being equivalent to one coulomb per second.