nominal impedance การใช้

• The most common nominal impedance for a single loudspeaker is now 8 ?.
• If the nominal impedance is 4 ohms, the voltage would be 2 volts.
• It may tell you the nominal impedance there.
• If the nominal impedance is 8?, the voltage would be 2.83 volts.
• For coax video cables and interfaces 75 ? is now the near universal standard nominal impedance.
• To do this, Z and Z'are scaled to the nominal impedance Z 0 so that
• In most applications, there are a number of values of nominal impedance that are recognised as being standard.
• The ratio of the peak resonant frequency to the nominal impedance can be as much as 4 : 1.
• In the days of valves ( vacuum tubes ), most loudspeakers had a nominal impedance of 16 ?.
• A loudspeaker with an 8? nominal impedance may exhibit actual impedances ranging from approximately 5 to 100? depending on frequency.
• Even though it has a very similar impedance to telephone cable, the nominal impedance is rated at 100 ?.
• Cable with 75 ? nominal impedance has been in use from an early period in telecommunications for its low loss characteristic.
• It is, however, still perfectly possible for the low frequency impedance to actually be lower than the nominal impedance.
• The nominal impedance rating of consumer loudspeakers systems can aid in choosing the correct loudspeaker for a given amplifier ( or vice versa ).
• This filter transformed to a band-pass filter will have an impedance equal to the nominal impedance at resonance rather than low frequency.
• Depending on the field of application, nominal impedance is implicitly referring to a specific point on the frequency response of the circuit under consideration.
• This nominal impedance of filters will generally be the same as the nominal impedance of the circuit or cable that the filter is working into.
• This nominal impedance of filters will generally be the same as the nominal impedance of the circuit or cable that the filter is working into.
• Nominal impedance " is " used, however, to characterise the transducers of an audio system, such as its microphones and loudspeakers.
• The test consists of transmitting an analog sinusoidal signal at the frequency of 1004 RMS ) is applied to a telephone line with 600 Ohm nominal impedance.