Assertion: iron's strength | /r/HasProperty | proportional
Facets:
value: directly
type: MANNER
value: to the current
type: OTHER
Source sentences:
text: The strength of the magnetic field induces by the electromagnet is directly proportional to the current passes through it.
text: The iron vane deflects from the low magnetic field to the high magnetic field, and the strength of the deflection is directly proportional to the magnitude of the current flow through it.