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Which risk increases when stray capacitance couples differential signal lines carrying high-speed sinusoidal signals?

A)Common-mode noise injection
B)Increased dielectric breakdown
C)Elevated electromagnetic interference
D)Signal harmonic distortion

💡 Explanation

Harmonic distortion increases due to the shunt capacitive reactances nonlinearly affecting the signal components during wave propagation in the traces. This is because capacitive coupling generates a frequency-dependent phase shift; therefore odd-order harmonics are amplified, rather than even-order attenuation.

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