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

question 27

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.

Apply the FOIL method for multiplying binomials.

Understand and apply the concept of a polynomial in standard form and identify its leading coefficient.

Convert numbers between standard form and scientific notation.

Apply algebraic methods to solve real-world problems involving motion and area.

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