In the equations v = V sin wt and i = I sin(wt – θ), what does cosθ indicate?

In the equations v = V sin wt and i = I sin(wt – θ), what does cosθ indicate? Correct Answer power factor

The equations of voltage sine wave and current sine wave can be given by v = Vmsin wt and i = Im sin(wt – θ) respectively. Also we can write these equations as v = \(\sqrt2\)VRMS sin wt and i = \(\sqrt2\)IRMS sin(wt – θ) respectively. All these equations representing sinusoidal waves graphically relate θ as the angle between voltage and current at every instant. By definition the power factor is given by cosθ. Broadly speaking to improve this cosθ or power transmission system, the engineers are constantly working.