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Microvolt (μV) Unit Definition
The microvolt is a multiple of the unit volt (V) for voltage. The International System of Units (SI) defines the prefix micro (μ) as a factor of one millionth or 10-6 or 0.000001. Per this definition, one microvolt is 10-6 volts. The microvolt is represented by the symbol μV.
Common Voltages
The voltage produced by each electrochemical cell in a battery is determined by the chemistry of that cell. Cells can be combined in series for multiples of that voltage, or additional circuitry added to adjust the voltage to a different level. Mechanical generators can usually be constructed to any voltage in a range of feasibility.
Nominal voltages of familiar sources:
Nerve cell resting potential: ~75 millivolts (mV)
Single-cell, rechargeable NiMH or NiCd battery: 1.2 V
Single-cell, non-rechargeable (AAA, AA, C and D cells): alkaline battery: 1.5 V; zinc-carbon battery: 1.56 V if fresh and unused
LiFePO4 rechargeable battery: 3.3 V
Cobalt-based Lithium polymer rechargeable battery: 3.75 V (see Comparison of commercial battery types)
Transistor-transistor logic/CMOS (TTL) power supply: 5 V
USB: 5 V DC
PP3 battery: 9 V
Automobile battery systems are 2.1 volts per cell; a "12V" battery is 6 cells or 12.6V; a "24V" battery is 12 cells or 25.2V. Some antique vehicles use "6V" 3-cell batteries or 6.3 volts.
Household mains electricity AC:
100 V in Japan
120 V in North America,
230 V in Europe, Asia, Africa and Australia
Rapid transit third rail: 600–750 V
High-speed train overhead power lines: 25 kilovolts (kV) at 50 hertz (Hz), and 25 kV at 60 Hz for exceptions.
High-voltage electric power transmission lines: 110 kV and up (1.15 megavolts (MV) is the record. The highest active voltage is 1.10 MV)
Lightning: often around 100 MV.
Other Voltage Unit Definitions
- Abvolt (abV)
- Attovolt (aV)
- Centivolt (cV)
- Decavolt (daV)
- Decivolt (dV)
- Dekavolt (daV)
- Exavolt (EV)
- Femtovolt (fV)
- Gigavolt (GV)
- Hectovolt (hV)
- Kilovolt (kV)
- Megavolt (MV)
- Microvolt (μV)
- Millivolt (mV)
- Nanovolt (nV)
- Petavolt (PV)
- Picovolt (pV)
- Quectovolt (qV)
- Quettavolt (QV)
- Ronnavolt (RV)
- Rontovolt (rV)
- Statvolt (statV)
- Teravolt (TV)
- Volt (V)
- Yoctovolt (yV)
- Yottavolt (YV)
- Zeptovolt (zV)
- Zettavolt (ZV)
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Related Definitions
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Sources
“Volt.” Wikipedia, Wikimedia Foundation, 10 Oct. 2020, en.wikipedia.org/wiki/Volt.