👉 Mastage is a term used in the field of electrical engineering to describe a phase difference between two alternating current (AC) signals. In other words, it refers to the difference in phase angle between two AC signals that are applied to a single circuit element or transformer. For example, if you have two AC signals A1 and A2 with the same frequency but different amplitudes, the phase difference between them will be -90 degrees for A1 and +90 degrees for A
