Practice - Voltage and Current Ratios: The Core Relationships
Practice Questions
Test your understanding with targeted questions
What is the formula for the voltage ratio in a transformer?
💡 Hint: Think about how the number of turns relates to voltage.
If a transformer has a turns ratio of 10:1, what does this mean for the voltage?
💡 Hint: Consider the direction of transformation.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the relationship between the turns ratio and the voltage ratio in transformers?
💡 Hint: Consider how turns affect voltage.
True or False: An ideal step-down transformer will have a lower current on the secondary side.
💡 Hint: Reflect on what happens to energy transfer.
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Challenge Problems
Push your limits with advanced challenges
A transformer has 150 turns on the primary winding and 30 turns on the secondary winding. If the primary voltage is 120V, calculate the secondary voltage and current if the primary current is 2A.
💡 Hint: Apply the voltage and current ratio formulas.
Explain what would happen if a transformer designed to step down voltage from 400V to 40V is connected in reverse. Discuss the implications for current and power.
💡 Hint: Consider energy conservation and the results of mismatch.
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Reference links
Supplementary resources to enhance your learning experience.