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← ScienceWhich effect on signal propagation occurs when impedance changes within a transmission line?
A)Signal reflection and attenuation✓
B)Frequency modulation distortion
C)Phase shift amplification overall
D)Increased power conversion efficiency
💡 Explanation
Signal reflection and attenuation occur due to impedance mismatches causing part of the wave to bounce back rather than propagate forward; this is caused specifically by wave interference because transmission impedance suddenly changes, therefore energy losses result rather than efficient conversion.
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