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The rectangular loop in Fig. 21–58 is being pushed to the right, where the magnetic field points inward. In what direction is the induced current? Explain your reasoning.

Problem 3.

Figure 21-58.

Giancoli, Douglas C., Physics: Principles with Applications, 7th Ed., ©2014. Reprinted by permission of Pearson Education Inc., New York.
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Quick Answer: 

Induced flux decreases down. Induced current goes counterclockwise to produce a magnetic field directed up, in order to oppose and thereby decrease the flux down.

Giancoli 7th Edition, Chapter 21, Problem 3