Two Coils,1 and 2,with Iron Cores Are Positioned as Shown

Multiple Choice

Two coils,1 and 2,with iron cores are positioned as shown in the figure.Coil 1 is part of a circuit with a battery and a switch.

-Assume that S has been closed for a long time.Which one of the following changes will result in an induced magnetic field in coil 2 that points toward C?

A) The switch S is opened.
B) The iron core is removed from coil 1.
C) Coil 1 and its core are moved toward A.
D) Coil 1 and its core are moved toward B.
E) Coil 2 and its core are moved toward C.