Let ‘V’ be the Instantaneous voltage

Let ‘i’ be the Instantaneous current

V = V_m sin ωt

I = i_m sin (ωt – Φ)

Radian frequency ω = 2Πf

Transmitter power P = V i

Inductive Load – Absorbs reactive power

Capacitive Load – Generate reactive power

Apparent Power:The product of RMS value of voltage and current