Convert Ampere-turns to Femtoampere-turns
Convert Ampere-turns (A·t) to Femtoampere-turns (fA·t) instantly and accurately.
Conversion Formula
fA·t = A·t × 1000000000000000
About Ampere-turns
The ampere-turn (A·t) is the SI practical unit of magnetomotive force, defined as F = N × I (turns × current). A 100-turn relay coil at 10 mA produces 1 A·t; power transformer cores typically operate at 100-1000 A·t. 1 A·t = 1 A (turn is dimensionless in SI).
About Femtoampere-turns
The femtoampere-turn (fA·t) equals 10⁻¹⁵ A·t. Used in SQUID-based nanoscale magnetic sensor calibration and spintronics research where single-turn excitation loops carry femtoampere bias currents. 1 fA·t = 10⁻¹⁵ A·t.
Quick Reference Table
| Ampere-turns (A·t) | Femtoampere-turns (fA·t) |
|---|---|
| 1 A·t | 1 × 1015 fA·t |
| 2 A·t | 2 × 1015 fA·t |
| 5 A·t | 5 × 1015 fA·t |
| 10 A·t | 1 × 1016 fA·t |
| 25 A·t | 2.5 × 1016 fA·t |
| 50 A·t | 5 × 1016 fA·t |
| 100 A·t | 1 × 1017 fA·t |