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← ScienceWhich transient outcome occurs when rapidly discharging a capacitor across a mismatched transmission line?
A)High-frequency ringing and voltage overshoot✓
B)Complete impedance matching and loss reduction
C)Purely resistive load with no reflections
D)Perfect pulse signal with no distortion
💡 Explanation
High-frequency ringing occurs because the impedance mismatch causes reflections. These reflective waves undergo constructive and destructive interference during transmission line oscillation, therefore voltage overshoot is produced. Energy is reflected, rather than allowing immediate dissipation into the load.
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