Hall effect
nounUK /ˈhɔːl ɪˌfekt/
US /ˈhɔːl ɪˌfekt/
The Hall effect is when a magnet makes electricity flow sideways in a thin piece of metal.
The Hall effect helps a phone know when its case is closed.
OTHER MEANINGS
2. The voltage created across a conductor when a magnetic field pushes moving charges to one side.
Scientists measured the Hall effect to find the charge carriers in the sample.
3. A principle used in Hall-effect sensors to detect magnetic fields or position.
The wheel speed sensor relies on the Hall effect.
4. A phenomenon studied in solid-state physics to understand how electrons move in materials.
The quantum Hall effect appears in very thin layers at low temperatures.