Practice - Transformers
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Practice Questions
Test your understanding with targeted questions
What is the function of a transformer?
💡 Hint: Think about how electricity changes when it goes through different devices.
What does Faraday's law describe?
💡 Hint: What happens when you switch on/off a magnet near a coil?
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What is the purpose of a transformer?
💡 Hint: Think of how it affects voltage levels.
True or False: A step-up transformer decreases voltage.
💡 Hint: Recall the definition of a step-up transformer.
2 more questions available
Challenge Problems
Push your limits with advanced challenges
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.
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.
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