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Which outcome usually occurs when a rapidly oscillating current passes through a parallel-plate capacitor?

A)Electromagnetic waves are radiated outward
B)Dielectric breakdown lowers capacitance rapidly
C)Electrostatic force overwhelms the plates
D)Capacitance linearly decreases over time

💡 Explanation

Electromagnetic waves occur because the oscillating current causes a rapidly changing electric field between the plates, leading to an oscillating magnetic field. This is Electromagnetic induction; therefore, waves are radiated rather than dielectric breakdown because breakdown requires exceeding the dielectric strength.

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