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Which mechanism causes current flow between capacitor plates, especially at higher AC frequencies?

A)Displacement current through changing electric field
B)Quantum tunneling of free flowing electrons
C)Ohmic conduction exceeding breakdown potential
D)Thermionic emission causing vacuum arc

💡 Explanation

The displacement current contributes to current flow because a changing electric field between plates generates an apparent current, therefore current flows readily at high AC frequencies, rather than relying only on free electron flow.

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