axmls said:It's easier to measure a current than a charge.
The amount of charge a battery can energize is an important specification. It basically tells you how big the battery is or how long it can last.zbikraw said:...charge is used to describe static effects, which without strong isolation and shielding are not constant,
David Lewis said:The amount of charge a battery can energize is an important specification. It basically tells you how big the battery is or how long it can last.
A base unit in science is a fundamental unit of measurement that is used to define other units. These units are considered to be the most basic and important units of measurement and are used to measure physical quantities such as length, time, mass, and electric current.
The Ampere is considered a base unit because it is one of the seven base units of the International System of Units (SI). These units are considered to be the most fundamental and universally accepted units of measurement. The Ampere is used to measure electric current, which is a fundamental physical quantity in electromagnetism.
The Ampere is defined as the constant current that, if maintained in two straight parallel conductors of infinite length, of negligible circular cross-section, and placed one meter apart in a vacuum, would produce a force between these conductors of 2 x 10^-7 newtons per meter of length.
No, not all base units are universally accepted. The International System of Units (SI) is currently the most widely used system of measurement and recognizes seven base units. However, there are other systems of measurement, such as the Imperial system, that use different base units.
Yes, base units can change over time as our understanding and technology advances. For example, the definition of the meter has changed multiple times since it was first established in 1799. As science and technology continue to evolve, it is possible that the definitions of other base units, including the Ampere, may also change in the future.