Practice - Derivation of Current Ratio
Practice Questions
Test your understanding with targeted questions
Define current ratio in the context of transformers.
💡 Hint: Think about how currents change when voltage does.
If V1 = 120V and V2 = 240V, what is the ratio I2/I1?
💡 Hint: Use the relationship of voltage to find current.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the relationship between current ratio and voltage ratio in transformers?
💡 Hint: Think about how they change when one is increased.
True or False: In an ideal transformer, power losses are negligible.
💡 Hint: Recall the definition of an ideal transformer.
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Challenge Problems
Push your limits with advanced challenges
A transformer has a turns ratio of 10:1. If the primary voltage is 500V and the primary current is 2A, determine the secondary voltage and current.
💡 Hint: Use the turns ratio to find voltage and then apply the current formula.
Consider a transformer that steps down voltage from 480V to 120V supplying a load of 10A on the secondary side. What is the primary current?
💡 Hint: Remember the inverse relationship between current and voltage.
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Reference links
Supplementary resources to enhance your learning experience.