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← ScienceWhich risk rises in high-frequency transmission lines due to reactive impedance?
A)Increased signal reflection at discontinuities✓
B)Reduced dielectric breakdown susceptibility
C)Enhanced skin depth penetration of current
D)Lower characteristic impedance matching needed
💡 Explanation
Signal reflection increases at discontinuities because mismatched impedance provokes reflection, according to Fresnel equations. High-frequency lines have reactive impedances arising from inductance and capacitance, therefore reflection happens because of poor impedance matching, rather than breakdown issues.
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