Practice Lenz’s Law - D4.3 | Theme D: Fields | IB MYP Grade 11 Physics
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Knowledge

D4.3 - Lenz’s Law

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What does Lenz's Law state?

💡 Hint: Think about how currents react to changes in magnetic fields.

Question 2

Easy

Determine the direction of the induced current if the magnetic field through a loop is increasing into the page.

💡 Hint: Visualize the right-hand rule.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What is Lenz's Law primarily concerned with?

  • The direction of electric current in non-conductors.
  • The direction of induced current based on changing magnetic flux.
  • The effects of resistance in circuit elements.

💡 Hint: Consider the key points we've learned today about induced currents.

Question 2

True or False: Lenz's Law states that induced currents always enhance the change in magnetic flux.

  • True
  • False

💡 Hint: Think about the implications of energy conservation.

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Challenge Problems

Push your limits with challenges.

Question 1

Consider a circular loop placed in a time-varying magnetic field. If the magnetic field strength increases uniformly, explain how Lenz’s Law applies and what you would observe in the induced current.

💡 Hint: Apply the concepts discussed about opposing changes and remember the role of induced currents.

Question 2

If a coil with many turns is in a varying magnetic field and experiences a rapid increase in flux, calculate the expected emf induced, given the rate of change of flux is known.

💡 Hint: Remember the relation between rate of change of flux and induced emf.

Challenge and get performance evaluation