Which Joe gave his name to ‘sloppy joes’? We look at five interesting sandwiches and their lexical origins.
The effective resistance of an electric circuit or component to alternating current, arising from the combined effects of ohmic resistance and reactance.See also acoustic impedance
- ‘The instrument must show the true rms value of the voltage across the measuring impedance.’
- ‘As the signal propagates down a path, the voltage magnitude is related to the effective impedance up to the point in the signal's flight.’
- ‘Note that impedance and reactance are both given in units of ‘ohms’ just like resistance.’
- ‘Each antenna features vertical polarization, with an impedance of 50 ohms.’
- ‘This greatly minimizes crosstalk among signals and helps to balance the effective impedance of each line at high frequencies.’
- ‘Figure 3 shows the display when the cable is terminated in its characteristic impedance of 50 ohms.’
- ‘Will the electric impedance tomography technique be improved further?’
- ‘The passive antenna elements are coupled to selectable impedance components.’
- ‘A high impedance probe for the spectrum analyzer is essential.’
- ‘The constant impedance is maintained despite changes in temperature and voltage by using two external resistors to hold the impedances for all the I / O pins, which can number hundreds in the larger parts.’
- ‘When impedance is reached, the energy shuts off and a tone alerts OR staff members that fusion is complete.’
- ‘Electrical impedance spectroscopy is a method for studying the structure of organic and inorganic materials.’
- ‘This was because the coupling resistance value had inverse effects on the amount of current arriving and on the impedance of the neurite.’
- ‘Electric impedance tomography is a new imaging technique that is potentially capable of monitoring those imbalances.’
- ‘An impedance matching circuit is provided for each signal-carrying wire pair of the first and second wire pair sets.’
- ‘It may be expressed as IX, where X, the reactance, is the imaginary part of the impedance.’
- ‘If the load impedance is not equal to the transmission line impedance, the wattmeter will indicate the amount of reflected power.’
- ‘In contrast, the configurations and sizes of the nozzles of the first and the second head members are identical, and their impedances are also the same.’
- ‘The technique is based on the principle that lean tissue has a higher electrical conductivity and a lower impedance rate than fat.’
- ‘The transponder alters the impedance of the tuned circuit in accordance with the coded pattern.’
Impedance is a specialized electrical term (as defined above), while impediment is an everyday term meaning 'a hindrance or obstruction': a low-impedance power supply; interpreting his handwriting was an impediment to getting business done
We take a look at several popular, though confusing, punctuation marks.
From Afghanistan to Zimbabwe, discover surprising and intriguing language facts from around the globe.
The definitions of ‘buddy’ and ‘bro’ in the OED have recently been revised. We explore their history and increase in popularity.