🏆 AP Exam Prep

A rectangular loop of wire is moving at a constant velocity to the right, entering a region of uniform magnetic field directed into the page. Which of the following statements about the induced current in the loop is true as it enters the field?

A There is no induced current.
B There is an induced current clockwise.
C There is an induced current counter-clockwise.
D The induced current direction depends on the loop's speed.

✓ Correct Answer: Option C

As the loop enters the field, magnetic flux into the page increases. By Lenz's Law, the induced current opposes this change by creating a magnetic field out of the page. A counter-clockwise current does this.

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