What this calculator does
Magnetic Dipole Moment works out strength of the magnetic moment produced by a current flowing around a coil loop. Enter your own figures above and the answer updates as you type: nothing is fixed in the code, so the result reflects exactly the numbers you supply.
The formula this calculator evaluates is printed under the tool and explained below, so you can check the working by hand or reuse it in a spreadsheet.
The formula
Formulaμ = N·I·A
The inputs explained
| Field | What to enter |
|---|---|
| Number of turns (N) | A number. Starts at 50. |
| Current (I) (A) | A number, measured in A. Starts at 2. |
| Loop area (A) (m²) | A number, measured in m². Starts at 0.008. |
Worked examples
Every figure in the tables below is produced by this page’s own calculator at build time, so the numbers and the tool always agree. Select any row to load that scenario.
How the answer changes with number of turns (n)
Every other input is held at the calculator’s starting values while number of turns (n) varies. Select any row to load that scenario into the calculator.