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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the primary function of a transformer?
💡 Hint: Think about what happens in power transmission.
Question 2
Easy
What are the two types of transformers?
💡 Hint: Consider what happens to the voltage.
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 main function of a transformer?
- To generate power
- To change voltage levels
- To store energy
💡 Hint: What is their main role in electricity transmission?
Question 2
AC generators convert mechanical energy into electrical energy.
- True
- False
💡 Hint: Think about the action involved in power generation.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Design a transformer to step down a 240V AC supply to 60V. If the primary coil has 100 turns, how many turns should the secondary coil have?
💡 Hint: What ratio do you need to achieve for the needed voltage drop?
Question 2
An AC generator's coil has 200 turns, an area of 0.5 m², and operates in a magnetic field of 0.8 T with an angular velocity of 50 rad/s. What is the emf generated?
💡 Hint: Remember to consider all variables' impact on the generated emf.
Challenge and get performance evaluation