Capacitance: Explaining Lamp Operation Separated by Insulator

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The lamp operates normally in the circuit with a capacitor and insulator because the capacitor allows alternating current to pass while storing energy. Electrons accumulate on one plate of the capacitor, while the other plate loses electrons, creating a potential difference that powers the lamp. The presence of an insulator, or dielectric, enhances the capacitor's ability to store charge by resisting the flow of electrons, allowing more charge to accumulate. This behavior is crucial for the operation of AC circuits, where the current continuously changes direction. Understanding the role of the insulator is essential for grasping how capacitors function in electrical circuits.
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Homework Statement


In the circuit ( signal generator in series with light bulb and capacitor ) the signal generator is set at 6.0 Vr.m.s., 1000 Hz
The lamp operates normally.Explain why the lamp can operate normally when the plates of the capacitor are separated by an insulator.

The Attempt at a Solution



Electrons build up on one of the parallel plates while the other plate loses electrons and they travel to the positive terminal of the power supply.

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Was slightly confused with this question, my course notes say the capacitor always has an insulator separating the plates and wasn't sure if they were expecting an answer with something to do with the type of power supply it was. Thanks for any correspondence.
 
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I assume by insulator you mean dielectric? If that is the case then the insulator would resist the charge so more can accumulate.
 

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