एक प्रत्यावर्ती राशि (alternating quantity) जो दूसरी प्रत्यावर्ती राशि से पहले अपना धनात्मक अधिकतम मान प्राप्त करती है, कहलाती है:

If the current and voltage in an alternating current (AC) circuit are in phase, meaning the phase angle is zero, what will be the power factor of the circuit?

The ratio of the Root Mean Square (RMS) value to the average value of an alternating current or voltage wave is known as the: