modified 10 years ago

Inductive reactance

01:08:35

Magnetic field induced by coil opposes current flow, directly related to AC frequency

published 10 years ago

KA5HXC

10 years ago

Light bulb prevents short circuit. Current and voltage cycles can be graphed as circles. In an ideal circuit with no DC resistance, voltage E would lead current I by 1/4 cycle or 90 degrees.

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