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← ScienceWhich outcome occurs when an electromagnetic wave's frequency rises excessively within a coaxial cable?
A)Increased dielectric material breakdown risk✓
B)Enhanced skin effect power loss
C)Reduced characteristic cable impedance
D)Elevated signal velocity propagation rates
💡 Explanation
Rising frequency amplifies the electromagnetic field's intensity; therefore, dielectric breakdown increases, because the material's insulating capacity is exceeded by increased field stress, rather than impedance changes or varied signal rates.
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