ac resistance การใช้

• First, its AC resistance is large, but not infinite.
• The frequency dependent AC resistance is called phase at a particular frequency.
• The increase in AC resistance described above is accurate only for an isolated wire.
• I wounder why it is called AC resistance rather than Skin inductance for instance.
• This hardly affects the AC resistance, but considerably reduces the weight of the conductor.
• Increased AC resistance due to the skin effect can be mitigated by using specially woven litz wire.
• The use of trapezoidal strands also results in reduced conductor diameter for a given AC resistance per mile.
• At higher frequencies, the AC resistance of a conductor can easily exceed ten times its DC resistance.
• The impedance is a frequency dependent AC resistance and possesses both magnitude and phase at a particular frequency.
• For ACSR conductors with an odd number of aluminium layers however, a magnetization factor is used to accurately calculate the AC resistance.
• A capacitor in series with a inductance can have lower impedance ( " AC resistance " ) than the inductance in it self.
• The negative resistance of the tube cancels the positive resistance of the tuned circuit, creating in effect a tuned circuit with zero AC resistance.
• This crowding gives an increase in the effective AC resistance of the circuit, with the effect at 60 Hertz being greater than at 50 Hertz.
• This internal DC resistance R i should not be confused with the internal AC resistance called Equivalent Series Resistance ( ESR ) normally specified for capacitors.
• Electrolytic capacitors feature unlimited charge / discharge cycles, high dielectric strength ( up to 550 V ) and good frequency response as AC resistance in the lower frequency range.
• The AC resistance often is many times higher than the DC resistance, causing a much higher energy loss due to ohmic heating ( also called I 2 R loss ).
• Due to applying the magnetization factor, a conductor with an odd number of layers has an AC resistance slightly higher than an equivalent conductor with an even number of layers.
• Changing the bias moves the operating point up or down on the curves, thus changing the equivalent small-signal AC resistance, gain, etc . seen by the signal.
• I'd be obligated to know how to consider both DC and AC resistances at some low and intermediate frequencies .-- talk ) 12 : 26, 25 August 2010 ( UTC)
• For example, diameter ACCC " Drake " conductor at 75 癈 has an AC resistance of 106 m? / mile, while equivalent ACSR conductor has an AC resistance of 139 m? / mile, 31 % higher.