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← ScienceWhich mechanism causes signal reflection when a high-frequency signal propagates along a transmission line with impedance mismatches?
A)Standing wave formation due to superposition✓
B)Skin effect increasing conductor resistance
C)Dielectric absorption damping the signal
D)Faraday induction generating return current
💡 Explanation
When a signal encounters an impedance mismatch, a portion of the signal's energy is reflected due to standing wave formation because the forward and reflected traveling waves superimpose constructively and destructively. Therefore, standing-wave formation leads to reflection, rather than skin effect, dielectric absorption, or Faraday induction which operate through distinct mechanisms.
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