🏆 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.

💡 Why is C) the correct answer?

The correct answer to the question "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?" is Option C: There is an induced current counter-clockwise..

The other options — A) There is no induced current., B) There is an induced current clockwise., D) The induced current direction depends on the loop's speed. — are incorrect for this AP Exam Prep question. As explained above: 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 curr…

📚 About This AP Exam Prep Practice Question

This 4-level AP Exam Prep question from the AP Physics topic is part of BrainForge Quiz's free exam preparation library. Each question includes the correct answer and a detailed explanation to help you understand the underlying concept, not just memorize the answer.

How to use this page: Read the question above, consider all four options (A through D), then check the highlighted correct answer and explanation. For active timed practice, start a free AP Exam Prep practice test or use flashcards for spaced repetition review.

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