# FET – Exercise – 4

FET » Exercise – 4

151. A BJT is a ________-controlled device. The JFET is a ________ – controlled device.

(a) voltage, voltage
(b) voltage, current
(c) current, voltage
(d) current, current

Explanation
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152. Which of the following is (are) not an FET?

(a) n-channel
(b) p-channel
(c) p-n channel
(d) n-channel and p-channel

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153. Referring to this transfer curve, determine ID at VGS = 2 V.

(a) 0.444 mA
(b) 1.333 mA
(c) 0.111 mA
(d) 4.444 mA

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154. What is the ratio of ID / IDSS for VGS = 0.5 VP?

(a) 0.25
(b) 0.5
(c) 1
(d) 0

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155. Which of the following represent(s) the cutoff region for an FET?

(a) ID = 0 mA
(b) VGS = VP
(c) IG = 0
(d) All of the above

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