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← ScienceWhich outcome results when capacitance drops sharply in a resonant inductive coupling array?
A)Resonant frequency abruptly shifts upward
B)Increased magnetic field confinement occurs
C)Reduced circulating current and efficiency✓
D)Improved impedance for optimal power
💡 Explanation
Circulating current and efficiency decrease because the decreased capacitance detunes the array, shifting it away from the resonant frequency via impedance change; therefore, the coupling is weaker, rather than shifting upwards in frequency when optimally tuned to frequency.
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