Volt-Ampere to Nanowatt Converter

Volt-ampere (VA) is a unit of apparent power in AC electrical systems, representing the product of voltage and current. It differs from watts (real power) in AC systems where voltage and current may not be in phase.

Volt-ampere became important with the development of AC electrical systems, where the distinction between apparent power and real power became crucial. It provided a way to specify the total power capacity of AC electrical equipment regardless of power factor.

Volt-amperes are used for AC electrical equipment ratings, transformer specifications, and electrical system design. They're standard for UPS ratings, transformer capacity, and AC electrical equipment where apparent power is more relevant than real power.

A nanowatt (nW) is a unit of power equal to one billionth of a watt (10⁻⁹ W). It represents incredibly small amounts of power found in advanced microelectronics, quantum devices, and ultra-sensitive scientific instruments.

The nanowatt became relevant with the development of nanotechnology and quantum electronics. It provided a scale for describing power levels in quantum devices, advanced semiconductors, and ultra-sensitive measurement systems where power consumption approaches fundamental limits.

Nanowatts are used in nanotechnology, quantum electronics, ultra-sensitive instruments, and advanced research applications. They're essential for quantum device specifications, nanoelectronics, and precision scientific measurements at the molecular level.