7.2 - AC Voltage Applied to a Resistor
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Practice Questions
Test your understanding with targeted questions
Define RMS Current in an AC circuit.
💡 Hint: Think about the average power compared to DC.
What is the formula for power dissipation in a resistor in an AC circuit?
💡 Hint: Consider Ohm's Law and energy dissipation.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the relationship between current and voltage in a resistive AC circuit?
💡 Hint: Consider the waveforms together.
True or False: The average power consumed in a purely resistive AC circuit can be zero.
💡 Hint: Think about instant values over a full cycle.
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Challenge Problems
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A circuit has a resistor of 10Ω and connects to an AC voltage source of 230V peak value. Calculate the average power dissipated in it.
💡 Hint: Use RMS values for power calculations.
An AC circuit with an rms voltage of 120V and a resistant load of 40Ω is in the circuit. Calculate the rms current and total power consumed.
💡 Hint: Utilize Ohm's Law to find current before calculating power.
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