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Long Solenoid Magnetic Field Calculator
Use this online long solenoid magnetic field calculator with labeled inputs and a worked example. B = μ₀ μr NI/L.
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solenoid field strength calculator online
Use long solenoid magnetic field calculator online with the physical quantities shown below. Long-solenoid approximation with constant supplied permeability; ignores edge effects and saturation.
How to use it
Enter Number of turns (turns). Set Solenoid length (m), Current (A), Relative permeability (dimensionless). Select Calculate, check the result units, then copy or download the JSON result.
Options and example settings
Calculation method
B = μ₀ μr NI/L
Worked examples
Worked case for long solenoid magnetic field calculator. Long-solenoid approximation with constant supplied permeability; ignores edge effects and saturation.
Long Solenoid Magnetic Field Calculator — example with explicit inputs
Settings: Solenoid length (m): 0.5; Current (A): 2; Relative permeability (dimensionless): 1
Input:
1000
Expected result for the example input and options:
Output:
{
"field_T": 0.00502654824508
}Limitations and common mistakes
- Long-solenoid approximation with constant supplied permeability; ignores edge effects and saturation.
- Match every input to its displayed unit; scientific notation such as 1e-6 is accepted.
- This is the documented idealized model; real systems may require additional effects and measurement uncertainty.
Frequently asked questions
How can I use solenoid field strength calculator online?
Enter Number of turns (turns). Set Solenoid length (m), Current (A), Relative permeability (dimensionless). Select Calculate, check the result units, then copy or download the JSON result.
Which model does Long Solenoid Magnetic Field Calculator use?
B = μ₀ μr NI/L. Long-solenoid approximation with constant supplied permeability; ignores edge effects and saturation.
Technical references
Where is my input processed?
The bundled tool processes input in your browser. It does not upload tool input to a conversion service. Other site plugins, analytics, advertising and browser extensions may have separate behavior.
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