Electrical Engineering ⇒ Topic : Exponential form

Exponential form. According to Euler's equation :

                        e^jθ = cos θ + j sin θ

       Similarly, e^-jθ = cos θ - j sin θ

The trigonometrical form of representing a phasor V is V = V (cos θ ± j sin  θ). Therefore, the phasor V may be represented in the exponential form as

                                           V = V e^±jθ

Here V is the magnitude (or modulus) of the phasor and ± θ (or argument) is the phase angle of the phasor from the reference axis (i. e. OX-axis).