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← ScienceWhich outcome occurs immediately after a surge causes dielectric breakdown in a coaxial cable?
A)Signal reflection increases sharply✓
B)Capacitance decreases asymptotically
C)Impedance matching improves
D)Wave velocity becomes constant
💡 Explanation
Signal reflection increases significantly after a surge because dielectric breakdown abruptly changes the cable's impedance—called impedance mismatch. The surge causes a short, therefore wave energy reflects rather than continuing down the cable, since all energy is forced back toward the source.
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