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← ScienceWhich consequence results when capacitive reactance drops sharply in an improperly shielded avionics field bus?
A)Harmonic signal propagation increases✓
B)Signal reflection losses minimized
C)Propagation delay is significantly lessened
D)Electromagnetic interference is substantially reduced
💡 Explanation
Increased harmonic signal results because capacitive reactance dropping allows higher frequency noise to propagate, a mechanism called parasitic oscillation. Therefore, harmonic propagation increases rather than a signal reduction because shielding failure creates unwanted capacitive paths.
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