Practice Pure Capacitive Circuit (c) (4.3) - Electromagnetic Induction and Alternating

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9 questions

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Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is the phase angle difference in a pure capacitive circuit?
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Think about how current and voltage relate in time.
Question 2.
Define capacitance.
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Remember, capacitors store energy!
3Question 3.
In a pure capacitive circuit, the current:
- Lags voltage
- Leads voltage
- Is equal to voltage
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Think about the time relationship in AC waveforms.
4Question 4.
True or False: In a capacitive circuit, voltage always leads current.
- True
- False
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Review the phase angle characteristics.
Question 5.
A circuit with a 40μF capacitor is connected to a 230V AC supply. Calculate the peak current at a frequency of 60Hz.
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Break it down step by step.
Question 6.
Discuss the effect when a capacitor is charged and discharged in a sinusoidal AC circuit at a frequency that produces resonance.
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Consider how reactances interact at resonance.

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