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← ScienceWhich outcome occurs when a radio-frequency signal matches cavity resonance?
A)Increased electromagnetic field amplitude✓
B)Wave impedance becomes mismatched
C)Wave losses through dielectric increase
D)Reduced group delay dispersion minimum
💡 Explanation
Increased electromagnetic field amplitude occurs because electromagnetic energy is efficiently stored during resonant inductive coupling. Therefore, wave energy intensifies, rather than experiencing other field or timing changes, due to frequency matching.
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