A unit of measure for electric charge.
- iOS 10.0+
- macOS 10.12+
- Mac Catalyst 13.0+Beta
- tvOS 10.0+
- watchOS 3.0+
You typically use instances of
NSUnit to represent specific quantities of electric charge using the
Electric charge is a fundamental physical property of matter that causes it to experience a force within an electromagnetic field. The SI unit for electric charge is the coulomb (C), which is defined as the amount of charge carried by a current of one ampere in one second (1C = 1A · 1s). Charge is also commonly expressed in terms of ampere hours (Ah).