Use the model to answer the question.
The model shows a simple electromagnet that does not attract metal objects.
An illustration shows the electromagnet cannot attract pins once disconnected from a source of electricity.
Which observation or inference is correct?
(1 point)
Responses
The battery was replaced with a lower voltage.
The battery was replaced with a lower voltage.
The model needs a switch in order to work.
The model needs a switch in order to work.
The metallic objects lost their magnetic domains.
The metallic objects lost their magnetic domains.
The wire was not connected to the source.