Assertion: inductor's current | /r/CapableOf | bring magnetic field
Facets:
value: in the inductor
type: LOCATION
Source sentences:
text: when an alternating current is set up in a circuit , the Alternating current brings a magnetic field in the inductor which is variable (since the current is varying...) this variable magnetic field induces an emf in the circuit (back emf) which opposes the cause that is producing the change (lenz's law)