Practice Transformers - D4.5 | Theme D: Fields | IB MYP Grade 11 Physics
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D4.5 - Transformers

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is the function of a transformer?

💡 Hint: Think about how electricity changes when it goes through different devices.

Question 2

Easy

What does Faraday's law describe?

💡 Hint: What happens when you switch on/off a magnet near a coil?

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 the purpose of a transformer?

  • To convert DC to AC
  • To transfer electrical energy
  • To store electrical energy

💡 Hint: Think of how it affects voltage levels.

Question 2

True or False: A step-up transformer decreases voltage.

  • True
  • False

💡 Hint: Recall the definition of a step-up transformer.

Solve 2 more questions and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

A step-down transformer has 300 turns in the primary and 120 turns in the secondary. If the primary voltage is 240V, what is the secondary voltage, and what will be the current in the secondary if the primary current is 5A?

💡 Hint: Calculate the secondary voltage first using the turns ratio.

Question 2

An ideal transformer has a primary voltage of 480V, Secondary turns = 200, and Primary turns = 50. Calculate the secondary voltage and the secondary current if the primary draws 2A.

💡 Hint: You need to apply the turns ratio to find the secondary voltage.

Challenge and get performance evaluation