In the equations v = \(\sqrt2\)V sin wt and i = \(\sqrt2\)I sin(wt – θ); wt is in _______

In the equations v = \(\sqrt2\)V sin wt and i = \(\sqrt2\)I sin(wt – θ); wt is in _______ Correct Answer radian

The equations of voltage sine wave and current sine wave are 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. In all these equations wt is expressed in radian and not in degree. By virtue of definition, sine or cos can be found for that quantity which is in degree or radian. Since we consider angular quantities in sinusoidal voltage and current equations, we use radian to maintain the uniformity in calcutions. Hence wt is in radian.