# Practical Electronics/Alternating current

Alternating current or AC refers to current that has amplitude varies sinusoidally and can be expressed mathematically

- Vac = V Sin(ωt + θ)

The highest voltage is V . One cycle of Sin wave has one highest positive value at θ = π/2 and one highest negative value at θ = -π/2

- Vac = ±V at θ = ± π/2

## The Peak to Peak ValueEdit

The value between ±V or in scalar equals to 2V

## The Average ValueEdit

The Average Value is denoted as V_{a} is defined as

- V
_{a}= 0.6 V

- V

## The Root Mean Square ValueEdit

The Root Mean Square Value is denoted as V_{rms} is defined as

- V
_{rms}= 0.707 V

- V