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

question 28

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 not result in an induced current in coil 2 that flows from left to right through R.

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

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