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← ScienceWhich outcome occurs when thermal runaway degrades NTC thermistor resistance?
A)Increased oscillator frequency oscillation instability
B)Decreased amplifier gain saturation risk✓
C)Reduced gate threshold voltage triggering
D)Elevated motor back-EMF sparking damage
💡 Explanation
Decreased thermistor resistance increases current and heat, causing further resistance drop via positive feedback. This thermal runaway initiates because the increased current causes the amplifier gain to saturate; therefore, gain declines rather than oscillation, due to this effect.
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