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Electronic Devices & CircuitsFET & MOSFET

In an n-channel depletion MOSFET, a conducting channel can exist at VGS=0. Applying a sufficiently negative VGS generally?

  • AReduces drain current by depleting the channel
  • BAlways increases drain current
  • CHas no effect on the channel
  • DForward biases an insulated gate junction
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Correct Answer: A. Reduces drain current by depleting the channel
Explanation: A negative gate voltage repels electrons from the n-channel, depleting it and reducing drain current.
Reference: Standard electronics: depletion MOSFET
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