Electron drift in household copper wiring
This refers to the slow average movement of electrons through copper wire when an electric current flows.
Also known as: electron drift speed in copper
How big is it?
0.0001 m/s · representative charge-carrier drift speed
Representative charge-carrier drift speed · representative model
Typical recorded range: 1 × 10⁻⁶ m/s to 0.01 m/s.
A little perspective
Electron drift in household copper wiring vs Sperm cell swimming: speed comparison
Electron drift in household copper wiring is about 2 times the progressive speed of a swimming sperm cell.
DISTANCE IN ONE SECOND
This refers to the slow average movement of electrons through copper wire when an electric current flows.
100 µm in 1 s
Sperm cell swimming refers to the speed at which a human sperm cell moves through fluid using its tail for propulsion.
50 µm in 1 s
Measurements, assumptions & sources +
Electron drift in household copper wiring
Representative charge-carrier drift speed: 0.0001 m/s; representative model; range 1 × 10⁻⁶ m/s–0.01 m/s.
A representative 0.1 mm/s electron drift speed in a current-carrying household copper conductor. Wire area, current and carrier density change the value; the electrical signal propagates far faster.
Defined examples — our methodology
The marked representative charge-carrier drift speed is calibrated. Unmeasured illustration details are representative.
Sperm cell swimming
Representative progressive speed: 5 × 10⁻⁵ m/s; representative; range 2 × 10⁻⁵ m/s–0.0002 m/s.
A representative 50 micrometres per second progressive swimming speed for a human sperm cell under laboratory observation. Individual cells, sample preparation, medium and measurement method produce a broad distribution.
NCBI — Human sperm motility assessment
The marked representative progressive speed is calibrated. Unmeasured illustration details are representative.
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Why this measurement?
Why we use 0.0001 m/s
We compare electron drift in household copper wiring. This is a representative comparison value; individual specimens or conditions can vary. The recorded range is 1 × 10⁻⁶ m/s to 0.01 m/s.
A representative 0.1 mm/s electron drift speed in a current-carrying household copper conductor. Wire area, current and carrier density change the value; the electrical signal propagates far faster.
The picture identifies the subject; the diagram compares the recorded values. How calibrated comparisons work →
Recorded properties
Dimensions and measurements
| Property | Selected value | Recorded range | Basis |
|---|---|---|---|
| 0.0001 m/s | 1 × 10⁻⁶ m/s to 0.01 m/s | representative model |
Around this scale
Explore nearby values.
Compare examples with lower, similar and higher values. Each card names the measurement being compared.
Nearest lower valueMotion and speedSperm cell swimming5 × 10⁻⁵ m/sRepresentative progressive speedSperm cell swimming refers to the speed at which a human sperm cell moves through fluid using its tail for propulsion.Nearest higher valueMotion and speedSea star tube-foot travel0.0003 m/sTravel speedSea star tube-foot travel is the movement speed of a sea star as it uses its tube feet to glide over surfaces.Sources and method
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There’s always another scale
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MotionLight in vacuum100% of c (1c)Light in vacuum is electromagnetic radiation that travels through empty space without any material medium.MotionSound in air1,235 km/hSound in air is the propagation of pressure waves through the atmosphere, which can be heard by humans and animals.MotionSperm cell swimming5 × 10⁻⁵ m/sSperm cell swimming refers to the speed at which a human sperm cell moves through fluid using its tail for propulsion.
MotionSnail crawling0.001 m/sSnail crawling is the slow movement of a snail as it glides along a surface using its muscular foot.MotionSea star tube-foot travel0.0003 m/sSea star tube-foot travel is the movement speed of a sea star as it uses its tube feet to glide over surfaces.MotionRed blood cell in a capillary0.001 m/sA red blood cell in a capillary refers to an erythrocyte moving through the body's smallest blood vessels as part of microcirculation.MotionGarden snail relaxed crawl0.0008 m/sA garden snail relaxed crawl describes the slow, steady movement of a garden snail as it glides along a surface.MotionSlime mould migration1 × 10⁻⁵ m/sSlime mould migration is the rate at which a motile stage of slime mould advances across a surface in search of food.