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AET Study Guide
AC Terms
Question | Answer | |
---|---|---|
Frequency | Number of cycles of AC completed in one second. Frequency in aircraft applications is 400 Hz. | |
Impedance (Z) | Electrical characteristic of a conductor. Impedance is the total opposition to the flow of AC in an electrical circuit (resistance, capacitance, and inductance). Values are given in ohms. | |
Capacitive Reactance (Xc) | ||
Alternating Current | Flow of electrons that continuously changes its value in magnitude and periodically reverses direction(sine-wave). Alternating current is much easier to produce in large quantities as compared to DC. | The time required for on cycle of AC to occur is called the period. |