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← TechnologyWhich outcome occurs when a MOSFET's gate-source voltage approaches the threshold with high frequency signals?
A)Increased switching power dissipation✓
B)Decreased channel thermal noise
C)Enhanced subthreshold conduction
D)Improved gate oxide reliability
💡 Explanation
Increased switching power dissipation occurs because the Miller effect creates a frequency-dependent gate impedance, therefore, increased capacitance leads to higher current, and thus greater power loss, rather than improved noise or gate reliability.
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