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AP Physics C: E&M
12.2 Magnetism and Moving Charges
IntermediateMCQConceptual20.2k
A circular current loop in a non-uniform magnetic field.
A circular current loop in a non-uniform magnetic field.
A rigid, planar circular loop of wire carrying a constant steady current \(I\) is placed in an external non-uniform magnetic field \(\vec{B}\). The loop experiences a net translational force. Which of the following best explains why the loop experiences a net translational force in this non-uniform field, whereas the same loop in a uniform magnetic field experiences zero net translational force?

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