Assertion: magnetic field's strength | /r/HasProperty | same order of magnitude
Facets:
value: as the strength of the field
type: OTHER
Source sentences:
text: The strength of the magnetic field of the permanent magnets at the iron band must be of the same order of magnitude as the strength of the field generated by the radio frequency excitation coil, allowing the radio frequency signal to exceed the threshold hysteresis (coercivity) of the iron.