What does volt ampere (V*A) measure?

Volt ampere is the unit of apparent power in AC circuits, representing the product of RMS voltage and RMS current regardless of phase angle.

When should I use nanojoule per second (nJ/s) as a unit?

Nanojoule per second is ideal for expressing very low power levels such as in ultra-low-power electronics, IoT sensors, and optical experiments.

Does 1 V*A equal 1 watt?

Only when the power factor is 1, meaning purely resistive load; otherwise, volt ampere measures apparent power, which can differ from real power in watts.

How to Convert Volt Ampere [V*A] to Nanojoule/Second [nJ/s]

Learn how to convert power units from volt ampere (V*A), the apparent power in AC circuits, to nanojoule per second (nJ/s), a unit used for very low power measurements in microelectronics and photonics.

Volt ampere [V*A]

Nanojoule/second [nJ/s]

Please check your input. It must be a valid numeric value.

Volt ampere [V*A] to Nanojoule/second [nJ/s] Conversion Table

Volt ampere [V*A]	Nanojoule/second [nJ/s]

Custom Unit Conversion Table Generator – Instant Printable Conversion Tables

Start Value

Enter the starting number (positive decimal or integer ≥ 0). Example: 0.1, 1, 5.

End Value

Enter the ending number (positive decimal or integer > Start Value). Example: 10, 50, 100.

Interval

Enter the step size (positive decimal > 0 and < End Value – Start Value). Example: 1.0, 2.5.

Volt ampere [V*A] to Nanojoule/second [nJ/s] Conversion Table
Volt ampere [V*A]	Nanojoule/second [nJ/s]

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What Is This Tool?

This converter transforms power measurements from volt ampere (V*A), a unit describing apparent power in alternating current systems, into nanojoule per second (nJ/s), which quantifies very small continuous power levels often used in ultra-low-power electronics and photonics.

How to Use This Tool?

Enter the value in volt ampere (V*A) you want to convert.
Select the units to convert from (volt ampere) and to (nanojoule/second).
Click the convert button to obtain the equivalent power in nanojoule per second.
Review the output which shows power in very small units suitable for microelectronics or optical power contexts.

Key Features

Converts apparent power expressed in volt ampere (V*A) to nanojoule per second (nJ/s).
Helpful for electrical engineering, microelectronics, and photonics power analysis.
Provides a simple way to handle large to very small unit conversions in power measurement.
Browser-based and easy to operate for quick unit transformation.
Displays examples to illustrate the conversion process clearly.

Examples

2 V*A converts to 2,000,000,000 nJ/s.
0.5 V*A is equal to 500,000,000 nJ/s.

Common Use Cases

Rating transformers, UPS, and generators by their apparent power capacity.
Specifying power consumption of ultra-low-power sensors and IoT devices.
Expressing energy efficiency in microelectronics based on average power per operation.
Describing low-level optical power in photonics or single-photon studies.

Tips & Best Practices

Ensure consistent unit selection when entering values for conversion accuracy.
Use this tool when bridging large-scale AC power to micro- or nano-scale power measurements.
Be mindful that volt ampere reflects apparent power and might differ from real power ratings.
Consider the scale of power involved; this conversion deals with large numerical values.

Limitations

Volt ampere measures apparent power, not necessarily equal to real power due to power factor effects.
Conversion results in very large numbers when switching from volt ampere to nanojoule per second.
The tool assumes steady power flow and does not directly handle transient or reactive power components.

Frequently Asked Questions

What does volt ampere (V*A) measure?: Volt ampere is the unit of apparent power in AC circuits, representing the product of RMS voltage and RMS current regardless of phase angle.
When should I use nanojoule per second (nJ/s) as a unit?: Nanojoule per second is ideal for expressing very low power levels such as in ultra-low-power electronics, IoT sensors, and optical experiments.
Does 1 V*A equal 1 watt?: Only when the power factor is 1, meaning purely resistive load; otherwise, volt ampere measures apparent power, which can differ from real power in watts.

Key Terminology

Volt Ampere (V*A): Unit of apparent power in AC circuits, product of RMS voltage and current, reflects total delivered power regardless of phase angle.
Nanojoule per Second (nJ/s): Unit of power equal to 10⁻⁹ joules per second, used to quantify very low continuous power levels.
Apparent Power: Combined effect of real and reactive power measured in volt amperes in AC electrical systems.

Quick Knowledge Check

What type of power does volt ampere (V*A) represent?

Real power

Apparent power

Reactive power

What does 1 nanojoule per second (nJ/s) equal in watts?

1×10⁻⁹ W

1 W

1×10⁹ W

When does volt ampere equal watts?

When voltage and current are zero

When power factor is 1

Always

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