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Excercise 2 - Electronics
General Physics I (PH 161)
Montgomery College
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ELECTRONICS II
EXERCISE 2
In MOSFET the current control mechanism is based on an _____________ established by the voltage applied to the control terminal. (a) Electric field (b) Induction layer (c) Induced field (d) None of the above
In the n-channel depletion-type MOSFET, the threshold voltage is (a) The value of the Gate-to-source voltage at which the channel is completely depleted of electrons. (b) The value of the Gate-to-source voltage at which a sufficient number of mobile electrons accumulate in the channel region to form a conducting channel. (c) The value of the saturation voltage. (d) The inversion layer voltage
What is an inversion layer? (a) An induced channel (b) A depletion layer (c) A pn junction (d) The gate electrode
For the JFET to operate in the pinch-off (a) The drain voltage must be greater than the gate voltage by at least |Vp|. (b) The source voltage must be greater than the drain voltage by – Vp. (c) The gate voltage must be less than the source voltage by – Vp (d) None of the above.
The conduction of the channel is proportional to (a) The pn junction voltage between the source and the drain. (b) The excess gate voltage (c) The threshold voltage (d) The inversion layer voltage
The maximum value of the gate-to-source voltage in an n-type JFET is (a) – 1 V (b) +1 V (c) 0 V (d) 0 V
Give the names of the following circuit symbols.
n-channel Enhancement MOSFET n-channel Depletion MOSFET
n-channel JFET p-channel Enhancement MOSFET
11. 12.
p-channel Depletion type MOSFET p-channel JFET
Excercise 2 - Electronics
Course: General Physics I (PH 161)
University: Montgomery College
