Practice Voltage and Current Ratios - 5.1.3 | Module 3: Introduction to Magnetism and Transformers | Basics of Electrical Engineering
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5.1.3 - Voltage and Current Ratios

Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

Define voltage ratio in transformers.

💡 Hint: Think about how the turns in windings affect voltage.

Question 2

Easy

What does a step-down transformer do?

💡 Hint: Consider its turns ratio.

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 voltage ratio in an ideal transformer?

  • V2/V1 = N2/N1
  • V1/V2 = N1/N2
  • V2 = N2 - N1

💡 Hint: Focus on the direct relationship.

Question 2

True or False: A step-up transformer increases the voltage across the load.

  • True
  • False

💡 Hint: Think of its purpose.

Solve 2 more questions and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

A transformer has a primary voltage of 480 V, turns ratio of 10:1 and is connected to a 10 A load. What is the secondary voltage and current?

💡 Hint: Use the turns ratio to find voltage, then apply power conservation.

Question 2

If a transformer has a primary voltage of 300 V and yields a secondary voltage of 150 V, what is the turns ratio and how does it affect current?

💡 Hint: Relate the voltages to their corresponding currents using the ratios.

Challenge and get performance evaluation