Goal: Applying the Biot-Savart law
Source: 283-645 Magnetic field from wire loop
The diagram shows a circular wire loop of radius R carrying current I.
What is the magnitude of the magnetic field, B, at the center of the
- None of the above.
(5) This question serves to identify students who do not know how to
apply the Biot-Savart law and/or those who are recalling the field due
to an infinite wire. This provides a good opportunity to discuss why
Ampere’s law is inappropriate for this case.