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← TechnologyWhich risk increases when a resonant circuit operates near its self-resonant frequency within an instrumentation amplifier?
A)Spurious oscillations from impedance mismatch✓
B)Thermal drift from excessive current draw
C)Reduced gain from inductive loading
D)Increased noise from component saturation
💡 Explanation
When a resonant circuit operates near its self-resonant frequency within an instrumentation amplifier, parasitic inductance and capacitance create unwanted resonances because the inductive and capacitive reactances cancel, causing high impedance peaks leading to oscillations. Therefore spurious oscillations result, rather than drift, reduced gain or noise, which require distinct component failures.
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