In a capacitive circuit connected to DC, which leads?
Correct answer: D. None
- A. Current
- B. Voltage
- C. Resistance
- D. None
Explanation
When connected to a DC source, a capacitor allows a brief transient current to flow until it is fully charged. Once charged, the current stops, and the concepts of leading and lagging, which apply to AC waveforms, are no longer relevant.
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About Alternating Current
Alternating current varies periodically, so phase relationships become essential when current passes through a resistor, capacitor or inductor. The chapter distinguishes resistance from capacitive and inductive reactance, explains phase lead and lag, and connects changing electric and magnetic fields with the production and properties of electromagnetic waves.
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