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Charge-Carrier Drift Velocity Calculator — result sheet
Calculate charge-carrier drift speed from current, carrier density, carrier charge, and cross-sectional area.
Inputs used
Results
Visual chart
Breakdown
Calculation steps
Returned data table
Formula and methodology
Formula: Drift speed=current/(carrier density×carrier charge×cross-sectional area).
The result is the average charge-carrier drift speed implied by a current under a uniform one-carrier model.
This result follows the calculator's declared inputs, precision, validation boundaries, and model limits.
Input contract
- Current — minimum 0; maximum 1000000
- Carrier number density — minimum 1.0E-6; maximum 1.0E+35
- Magnitude of carrier charge — minimum 1.0E-25; maximum 1.0E-15
- Conductor cross-sectional area — minimum 1.0E-18; maximum 1000000
Worked example
| Input | Value |
|---|---|
| Current | 5 |
| Carrier number density | 8.5E+28 |
| Magnitude of carrier charge | 1.602176634E-19 |
| Conductor cross-sectional area | 1.0E-6 |
Drift speed ≈0.000367 m/s.
Assumptions and limits
- Current, density, charge, and area use compatible SI-style units.
- The carrier charge is entered as a positive magnitude.
- Alternating current, multiple carrier species, scattering, temperature, and microscopic velocity distributions are not modeled.
Calculator note
Source and methodology
Use the official WorldCalculate methodology policy for the source, formula, precision, and boundary standards behind this calculator.
Planning estimate, not financial, medical, legal, or professional advice. © WorldCalculate — reuse with attribution. Built and curated by Hassan ALRowaie.
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