Practice Lenz's Law - D.4.3 | Theme D: Fields | IB Grade 12 Diploma Programme Physics
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D.4.3 - Lenz's Law

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is Lenz's Law?

💡 Hint: Think about how induced current behaves when something changes in its environment.

Question 2

Easy

How does Lenz's Law relate to conservation of energy?

💡 Hint: Consider why systems need to maintain energy balance.

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 does Lenz's Law state?

  • Induced current flows in the same direction as the magnetic flux.
  • Induced current opposes the change in magnetic flux.
  • Induced current has no relationship with magnetic flux.

💡 Hint: Consider what happens to current when magnetic conditions change.

Question 2

Is Lenz's Law an indication of energy conservation in electromagnetic systems?

  • True
  • False

💡 Hint: Think about how energy transformations occur in electrical systems.

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Challenge Problems

Push your limits with challenges.

Question 1

A coil has 100 turns and a magnetic flux that changes from 0.5 Tm^2 to 0.3 Tm^2 in 1 second. Calculate the induced emf.

💡 Hint: Focus on the number of turns and the change in magnetic flux over time.

Question 2

In a setup where a magnet is thrust towards a coil quickly, describe qualitatively what happens to the induced current and how the system reacts.

💡 Hint: Think about how the current tries to maintain balance.

Challenge and get performance evaluation