- #1
mgrantbaker
- 4
- 0
Why can't I use Ampere's law to compute the magnetic field at the center (P) of a semi-circular wire?
If I calculate B at P due to d_theta, and then, using superposition, integrate from 0 to pi,
the result is B=uI/2R.
Biot-Savarte law gives the correct answer of B=uI/4R.
If I calculate B at P due to d_theta, and then, using superposition, integrate from 0 to pi,
the result is B=uI/2R.
Biot-Savarte law gives the correct answer of B=uI/4R.