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kV

kV

1 4.3
A unit of electric voltage equal to one thousand volts
  • noun
  • Specialized
translation icon : kV
  • The CT scanner is set at 130 kV potential and 200 mA coil current during the acquisition of the images.
  • voltage of kV
  • 100 kV
  • 75 kV

Examples

  • Model 280HVD detects voltage in the 80 V to 275 kV range.

    Academic text (2004)
  • The microscope was operated at 15 kV at a working distance of 7.1 mm.

    Academic text (2018)
  • The observations were performed at 20 kV and a working distance of approximately 5 mm.

    Academic text (2015)
  • The unit can detect 2.5 kV or 44 kV from up to 30 feet away.

    Academic text (2004)
  • The giant transformer is powered by a six kV cable connected to the transmission line.

    Blog text (23)
  • An electric field of 30 kV/m accelerates the charges to create a measurable current.

    Academic text (2003)
  • The potential difference in this case is 7.3 kV, and the current is 14.5 milliamperes.

    Blog text (2)
  • The high-voltage electron gun power supply provides a 100-kV potential with a load of several milliamperes.

    Academic text (2001)
  • By early 1932, they had achieved an output voltage of 600 kV, which they used to accelerate protons.

    Academic text (2012)
  • The microscope was operated at 15 kV at a working distance of 7.1 mm.

Synonyms

kilovolt
vskV
  • Specialized
1 5.4

A unit of electric pressure equal to one thousand volts

is identical in meaning but appears as the short symbol form

Surface Forms

kV singular
kV plural

Morphology

kV = V (semi-transparent) = k + V

If the learner recognises the SI prefix 'k' (kilo = thousand) and the symbol 'V' for volt, they can derive 'kilovolt'; otherwise the abbreviation is not obviously interpretable.

Etymology

KV is short for kilo- + volt; kilo- means 'thousand', like in kilogram and kilometer, and volt is the unit named after the scientist Volta. So, kV means 'a thousand volts', which is why we use it to show high electrical voltage.