Eksempler på ohm

• All impedances were maintained below 5000 ohms and were checked before and after testing.

• Such a theoretical device would have a zero ohm output impedance in series with the source.

• Artifact standards are still used, but metrology experiments relating accurately-dimensioned inductors and capacitors provided a more fundamental basis for the definition of the ohm.

• The radiation resistance is typically a fraction of an ohm, making the elementary doublet an inefficient radiator.

• A 21 divider probe consists of a 1000 ohm series resistor and a short 50 ohm transmission line.

• From 1900 the mercury ohm was replaced with a precision machined plate of manganin.

• Values ranged from fractions of an ohm to 22 megohms.

• The definition of the ohm unit was revised several times.

• Impedances are 75 ohm single-ended, and 150 ohm differential.

• These probes are also called resistive divider probes, since a 50 ohm transmission line presents a purely resistive load.

• Electron mobility measurements surpassing one million correspond to a sheet resistance of one ohm per square -- two orders of magnitude lower than in two-dimensional graphene.

• The 1893 system had three base units: the international ampere, the international ohm and the international volt.

• This high-frequency resistance may vary over a wide range (from 0.1 ohm to 10 k in some cases; the useful range is smaller, though).

• A matching transformer should be inserted between any such low-impedance transmission line and the higher 470 ohm impedance of the antenna.

• The antenna has very low radiation resistance (less than one ohm) and will rarely be utilized for transmitting.