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← ScienceWhich risk increases when high-frequency signals propagate through FR-4 fiberglass?
A)Dielectric absorption induces signal attenuation✓
B)Skin effect decreases line inductance
C)Electromigration creates short circuits
D)Impedance mismatch minimizes signal reflection
💡 Explanation
Dielectric absorption causes increased signal attenuation because the alternating electric field dissipates energy in the dielectric material via dipole polarization. Therefore, dielectric loss is greater rather than an alternative effect due to the frequency.
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