1) Why the de load line for voltage-divider bias does not intersect with the origin of the transfer characteristic?.

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DISCUSSION:
1) Why the de load line for voltage-divider bias does not intersect with the origin of
the transfer characteristic?.
2) What is the type of biasing and the type of JFET channel for each of the
following characteristic curves?.
le
Vau
V.
Vatun
(a)
(b)
(e)
3) In the CD amplifier, when V is at its positive peak, at what points are la and Vas?
Explain why with the needed diagrams.
4) What factors determine the voltage gain of the common-source JFET amplifier?.
5) Does RG affect on the biasing? Explain why. What is the purposes of RG?.
6) Choose the correct answer:
a. There is 180° phase inversion between:
1. gate and drain voltage.
2.
* gate
e and source voltage.
3. source and drain voltage.
b. In a common-source amplifier, the output voltage is:
1. in phase with the input.
2. taken at the source.
3. taken at the drain.
c. If you are looking for both good voltage gain and high input resistance,
you will use a
1. CS amplifier.
2. CB amplifier.
3. CD amplifier.
:
11
Experiment (12HJFET Amplifiers (CS and CD)
2019-2018
d. For small-signal operation, an n-channel JFET must be biased at:
1. Vos Vesoff).
2. -Vaston) < VGs <0 V.
3. OV< Vas< +VGs(of)-
e. The ideal maximum voltage gain of a CD amplifier is:
1. gmR.
2. -gmRd.
3. 1.
f. In a certain self-biased n-channel JFET circuit, Ip 2mA and Rs-1KO,
VGs equal to:
1. 2V.
2. -2V.
3. OV,
Transcribed Image Text:DISCUSSION: 1) Why the de load line for voltage-divider bias does not intersect with the origin of the transfer characteristic?. 2) What is the type of biasing and the type of JFET channel for each of the following characteristic curves?. le Vau V. Vatun (a) (b) (e) 3) In the CD amplifier, when V is at its positive peak, at what points are la and Vas? Explain why with the needed diagrams. 4) What factors determine the voltage gain of the common-source JFET amplifier?. 5) Does RG affect on the biasing? Explain why. What is the purposes of RG?. 6) Choose the correct answer: a. There is 180° phase inversion between: 1. gate and drain voltage. 2. * gate e and source voltage. 3. source and drain voltage. b. In a common-source amplifier, the output voltage is: 1. in phase with the input. 2. taken at the source. 3. taken at the drain. c. If you are looking for both good voltage gain and high input resistance, you will use a 1. CS amplifier. 2. CB amplifier. 3. CD amplifier. : 11 Experiment (12HJFET Amplifiers (CS and CD) 2019-2018 d. For small-signal operation, an n-channel JFET must be biased at: 1. Vos Vesoff). 2. -Vaston) < VGs <0 V. 3. OV< Vas< +VGs(of)- e. The ideal maximum voltage gain of a CD amplifier is: 1. gmR. 2. -gmRd. 3. 1. f. In a certain self-biased n-channel JFET circuit, Ip 2mA and Rs-1KO, VGs equal to: 1. 2V. 2. -2V. 3. OV,
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