x / m
y / m
-0.500 m
0.500 m
→ I · conventional current on conductor
|B| / T0.00e+0 T1.000 T
Model declarationsz = 0 slice of the 3D fieldideal infinite current · return path omitted · r < 12 mm withheldoriented spanning surface · signed current linkingclosed surface · 1536-sample quadrature
IDEAL VECTOR PROBE0.22000 m · 0.0000 m
solving…
Official experiment
MG-01Does ∮H·dl recover the signed free current?
Exact infinite-wire oracle in a true 3D observation slice.
Lab tasks
0 / 3 solved
- 1Predict
Compared with its value 10 cm from the wire, what does |B| do at 20 cm?
- 2Measure
Place the probe 20 cm from the wire, at (0.20, 0), and read |B|.
±2% - 3Extend
Double the current to 24 A. What is |B| at (0.20, 0) now? Predict, then check.
±2%
OFFICIAL EXPERIMENTS
fundamentals
coils
matter
particles
Three-dimensional vacuum Biot–Savart sources evaluated on the world z = 0 plane; all vector components are retained. · Open public validation manifest ↗