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← ScienceWhen a long, undersea telecommunications cable corrodes allowing seawater ingress, which outcome impacts signal integrity?
A)Increased capacitive reactance broadens the pulse✓
B)Resistive losses create standing wave patterns
C)Faraday shielding blocks most frequency bands
D)Dielectric breakdown raises threshold voltage
💡 Explanation
Increased capacitance arises because seawater intrusion raises the effective dielectric constant, thereby decreasing the cable's impedance. This rise in capacitance dominates, therefore pulse spreading occurs rather than reflection from resistive losses or faraday shielding.
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