The word "impedance" is correct and usable in written English.
You can use it when discussing electrical resistance (such as the impedance of an electrical circuit) or the obstruction of something (such as the impedance of a task). Example sentence: "The loud machinery created an impedance to our productivity."
Because of a DC system's much lower electrical impedance, faults can rip through it extremely quickly.
The circuitry needed to do this typically increases a grid's total impedance (the alternating-current equivalent of resistance) and reduces its efficiency.Superconducting FCLs, by contrast, are transparent to electricity until the current surges past a critical level.
Impedance is a measure of electrical resistance that captures the effects of this feedback.Technology Quarterly A new old idea Everlasting light Old clean coal Sea change Piecing history together What is this that roareth thus?
It detunes both antennas, especially the bigger, more sensitive one used by the cellular radio all the more so if contact is also made near its point of maximum impedance (ie, the peak voltage-to-current ratio for the frequency concerned) at the bottom left-hand corner of the device.
It does so by measuring the signal without drawing current, using "high impedance" sensors.Impedance is related to resistance which, as generations of schoolchildren have had drummed into them, is the ratio of voltage to current.
Measure this impedance (and scrub out any other sources of variation) and you can measure how rainy it is.
Using a medical-imaging technique called electrical-impedance tomography, Dr Safi and his colleague David McGahon are devising software that can draw a conductivity map of an entire painted structure.Nanotechnology has been used in paints before.
It would be difficult to do this trick with conventional detectors.Nor is the high-impedance technique restricted to medical applications.
A plane that thinks it's a boat A car that runs on water The ultimate game gear Zap! You're not dead Hearts and minds Health 2.0 The world on your desktop The trouble with computers Nuclear dawn A patent improvement Borrowing from nature Jolly green heretic ReprintsThe advantage of using high-impedance sensors is that the signal an electric potential can be measured at a distance.
Using a medical-imaging technique called electrical-impedance tomography, Dr Safi and his colleague David McGahon are devising software with which to draw a conductivity map of an entire painted structure.
Because lightning tends to strike the highest object in the vicinity, rods are typically placed at the apex of a structure and along its ridges; they are connected to the ground by low-impedance cables.
