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

question 32

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 S has been closed for a long time.Which one of the following statements is true when coil 1 and its core are moved toward point B?

• A)There is no induced current in r.
• B)There is a magnetic field in coil 1 that points toward B.
• C)There is an induced current in R that flows from left to right.
• D)There is an induced current in R that flows from right to left.
• E)There is an induced magnetic field in coil 2 that points toward B.

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