How does charge pass through a capacitor in a radio tuner

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SUMMARY

The discussion centers on the behavior of capacitors in a radio tuner, specifically how alternating current (AC) interacts with a fully charged capacitor. It is established that capacitors block direct current (DC) and allow AC to pass by influencing the charges within the circuit. The confusion arises from the interpretation of charge movement, where it is clarified that charging a capacitor involves transferring charge through an external circuit rather than direct transfer between the plates. This highlights the role of inductors in facilitating electrical resonance in AC circuits.

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  • Understanding of AC and DC current principles
  • Basic knowledge of capacitor and inductor functions
  • Familiarity with electrical resonance concepts
  • Knowledge of potential difference and voltage
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  • Study the principles of electrical resonance in AC circuits
  • Learn about the role of inductors in tuning circuits
  • Explore the charging and discharging processes of capacitors
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Electronics enthusiasts, radio frequency engineers, students of electrical engineering, and anyone interested in understanding the dynamics of capacitors and inductors in AC circuits.

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I understand that the simplest tuner you can have is a capacitor and inductor connected in series, and i understand that radio waves use AC current to send signals, and that capacitors block DC current. I think i also understand that an inductor even without an iron core experiences an opposing magnetic force (?) thus clearing the way for electrical resonance via AC current.

but I am having a hard time visualizing how AC current is passed through a fully charged capacitor. Does the term really mean charges pass through or just that it pulls and pushes the charges already inside the inductor. I'm sorry if this is a stupid question, but after doing some searching of my own, i came across this confusing writing:

Since the charging of a capacitor can be thought of as moving charge from one plate DIRECTLY onto the other plate through a potential difference of V, the voltage between the capacitor plates.

because i though a capacitor only stored voltage. I did not know electrons could jump from one plate to the other, because that does not make sense to me
 
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Strangeline said:
Since the charging of a capacitor can be thought of as moving charge from one plate DIRECTLY onto the other plate through a potential difference of V, the voltage between the capacitor plates.

they don't mean that the charge goes directly from one plate to the other. If you charge a capacitor with a battery, the charge goes from one plate, through the wires and the battery to the other plate.
 

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