This question is about magnetic fields.
Which diagram shows the correct magnetic field pattern between the north poles of two bar magnets?
A physicist is designing a diagram to represent a uniform magnetic field inside a medical MRI scanner's core region.
State three geometric characteristics that the drawn magnetic field lines must possess to show that the magnetic field is uniform.
Describe how the diagrammatic representation of these lines should be modified if the scanner is operated with a weaker uniform magnetic field.
