A2L Item 233
- Description: Identify the current configuration causing the largest magnetic field at a specified point.
- Goal: Reasoning regarding magnetic fields caused by current elements
- Source: 283-655 Ordering magnetic field magnitudes
- Keywords: Current, Electromagnetism, Magnetic Field
The question for students:
Order the following situations according to the magnitude of the magnetic field at the point P. Order from highest to lowest.
- ABCD
- ADBC
- BDAC
- CADB
- DABC
- None of the above
Commentary for teachers:
Answer
(6) This question poses a good exercise for students. They can reason comparatively without having specific expressions for the field contributions from wires or loops. The order is CDBA.