The formula to calculate the Phase Angle (A) is:
\[ A = \arctan\left(\frac{XL - XC}{R}\right) \]
Where:
A phase angle is an amount at which the voltage of a coil or circuit is leading or lagging behind the current of the same coil or circuit. This term is used most in electromagnetism.
Let's assume the following values:
Using the formula to calculate the Phase Angle:
\[ A = \arctan\left(\frac{50 - 30}{10}\right) = \arctan(2) \approx 63.43^\circ \]
The Phase Angle is approximately 63.43 degrees.