zero impedance การใช้

• This is because the quarterwave transforms the infinite impedance into a zero impedance.
• One extreme is where the fault has zero impedance, giving the maximum prospective short-circuit current.
• The ? / 4 conductor acts as a transformer, converting the zero impedance at the short to the braid into an infinite impedance at the open end.
• An ideal DC voltage source has zero impedance, that is, it presents a short circuit and it is not useful to connect a short circuit directly across the line.
• The " ? " / 4 conductor acts as a transformer, converting the zero impedance at the short to the braid into an infinite impedance at the open end.
• Therefore the series LC circuit, when connected in series with a load, will act as a band-pass filter having zero impedance at the resonant frequency of the LC circuit.
• :: Another thing to keep in mind ( though I now see it's already been mentioned ) is that superconductors have zero " resistance ", not necessarily zero impedance.
• Because the capacitor has zero impedance at high frequencies and infinite impedance at low frequencies, the current in the resistor remains at its DC value " I T " for frequencies up to the corner frequency, whereupon it drops toward zero for higher frequencies as the capacitor effectively short-circuits the resistor.