Uploaded January 2018 | Updated September 2026, 3 weeks ago
In AC circuits, ideal capacitors do not use up any real power. Instead they cycle between absorbing power to build up the electric field between the two sides of the capacitor and returning power to the system as the electric field discharges. This oscillating power is quantified as reactive power and is an important consideration in designing AC circuits.
This video shows the relationship between AC voltage, current, and power in aa capacitor and how to calculate reactive power for an AC circuit with a capacitor in it.
David Williams
elen.ca
Outro: I think it's a hybrid of the Harry Potter theme song and Bouree by J.S. Bach
In AC circuits, ideal capacitors do not use up any real power. Instead they cycle between absorbing power to build up the electric field between the two sides of the capacitor and returning power to the system as the electric field discharges. This oscillating power is quantified as reactive power and is an important consideration in designing AC circuits.
This video shows the relationship between AC voltage, current, and power in aa capacitor and how to calculate reactive power for an AC circuit with a capacitor in it.
David Williams
elen.ca
Outro: I think it's a hybrid of the Harry Potter theme song and Bouree by J.S. Bach
