7 - ALTERNATING CURRENT
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Practice Questions
Test your understanding with targeted questions
What is the formula for calculating RMS voltage from peak voltage?
💡 Hint: Remember that RMS voltage is less than the peak voltage.
Define alternating current.
💡 Hint: AC is used in household power supplies.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does AC stand for?
💡 Hint: Think about the types of current we use in homes.
The average power in an AC circuit depends on the frequency, voltage, and current.
💡 Hint: Reflect on the power equations discussed.
1 more question available
Challenge Problems
Push your limits with advanced challenges
A circuit has R = 15 Ω, L = 100mH, and is connected to a 220V AC source at 60Hz. Calculate the circuit's impedance and the current flow.
💡 Hint: Ensure to find XL before calculating Z.
Explain how power factor correction can impact AC systems in industrial applications.
💡 Hint: Think about how reactive power behaves compared to real power.
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