A is a bar of soft iron, bent as shown, and wound around with insulated copper wire, the ends of which are connected with a battery, B, thus forming an electromagnet.
(a bar of soft iron; wound around; ) (A; forming; an electromagnet) Context(A forming,List([0, 148))):(the ends of which; are connected; )
A forming,List([0, 148))
a bar of soft iron A the ends of which
wound around forming are connected
an electromagnet