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← ScienceWhich electrical surge risk increases when a submarine antenna receives a powerful electromagnetic pulse (EMP) wave?
A)Galvanic corrosion of the hull
B)Dielectric breakdown in insulators✓
C)Resonant cavity formation in hull
D)Thermoelectric melting of conductors
💡 Explanation
Dielectric breakdown risk increases because the EMP’s rapid voltage change induces a large electric field exceeding the insulator’s dielectric strength; therefore, insulation fails rather than corrosion or thermoelectric effects, because those require different drivers.
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