Angle between voltage and current

You mean phase angle ?
If yes then,
phase angle between voltage & current is difference in time, measured between voltage & current which is expressed in degrees.
This difference is due to inductive and/or capacitive reactance making current to lead or lag the voltage.
In capactive current leads the voltage ;while in inductive current lags the voltage.
In an ideal circuit, phase angle is positive 90 degree for capacitor & negative 90 degree for an inductor.