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

question 60

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 statements is true if S is suddenly opened?

• A)There is no induced current through R.
• B)There is no induced magnetic field in coil 2.
• C)There is an induced current in R that flows from right to left.
• D)There is an induced magnetic field in coil 2 that points toward C.
• E)There is an induced magnetic field in coil 2 that points toward B.

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