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What happens to the drain current (Id) in a MOSFET when the gate voltage is incr

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Question: What happens to the drain current (Id) in a MOSFET when the gate voltage is increased beyond the threshold voltage?

Options:

  1. Id decreases
  2. Id remains constant
  3. Id increases
  4. Id becomes zero

Correct Answer: Id increases

Solution: 

When the gate voltage exceeds the threshold voltage, the drain current (Id) increases as the channel becomes more conductive.

What happens to the drain current (Id) in a MOSFET when the gate voltage is incr

Practice Questions

Q1
What happens to the drain current (Id) in a MOSFET when the gate voltage is increased beyond the threshold voltage?
  1. Id decreases
  2. Id remains constant
  3. Id increases
  4. Id becomes zero

Questions & Step-by-Step Solutions

What happens to the drain current (Id) in a MOSFET when the gate voltage is increased beyond the threshold voltage?
  • MOSFET Operation – Understanding how the gate voltage influences the conductivity of the channel and the resulting drain current.
  • Threshold Voltage – The minimum gate voltage required to create a conductive channel between the source and drain.
  • Drain Current Behavior – The relationship between gate voltage and drain current, particularly in the saturation and triode regions.
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