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← ScienceWhich risk increases when a dielectric slab is rapidly inserted between the plates of a parallel plate capacitor within a microwave circuit?
A)Standing wave mismatch and reflections✓
B)Unexpected voltage inversion in waveform
C)Increased parasitic inductance and ringing
D)Complete dielectric breakdown immediately occurs
💡 Explanation
Standing wave mismatch occurs because the sudden change in the dielectric constant alters the impedance, causing reflections. This results from impedance mismatch rather than the change directly causing breakdown, therefore the reflections are the major outcome.
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