4.4 - Working of n-Channel Enhancement-mode MOSFET
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Practice Questions
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What happens at VGS = 0 in an n-channel enhancement-mode MOSFET?
💡 Hint: Think about the initial state of the device.
Describe what occurs when VGS exceeds Vth.
💡 Hint: Focus on the relationship between voltage and current flow.
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Interactive Quizzes
Quick quizzes to reinforce your learning
At what condition does an n-channel enhancement-mode MOSFET begin conducting current?
💡 Hint: Remember the threshold voltage's role.
True or False: An n-channel enhancement-mode MOSFET has a conductive channel at zero gate-source voltage.
💡 Hint: Recall the definition of enhancement-mode.
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Challenge Problems
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An n-channel enhancement-mode MOSFET has a threshold voltage of 3V and a gain factor k of 0.5 mA/V^2. Calculate the drain current (ID) when VGS is 5V in the saturation region.
💡 Hint: Focus on plugging in the values correctly into the formula.
If VGS is increased gradually past the threshold voltage, how would you expect the ID to behave in the different operating regions?
💡 Hint: Think about the relationship between VGS and the conductive channel's behavior.
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