- BH Curve
- A graph of the magnetic characteristics of ferromagnetic inductor cores. Flux density (B) is plotted against the magnetizing force (H).
- Bhabda Scattering
- Scattering of positrons by electrons.
- Abbreviation of Brinell Hardness Number.
- Abbreviation of Brake Horse Power, the useful power available at the flywheel of an engine.