Gate source cut off voltage, Electrical Engineering

Assignment Help:

Q. Gate source cut off voltage?

It is the gate source voltage where the channel is completely cut off and the drain current becomes zero.It is interesting to note that the value of gate source voltage should always have the same magnitude as the pinch off voltage.

The different parameters of JFET are:

a.c drain resistance(rd):

Corresponding to the a.c plate resistance, we have a.c drain resistance in a JFET.It may be defined as follows:

It is the ratio of change in  drain -source voltage(¨Vds) to the change in drain current(Id) at constant gate source voltage ie, a.c drain resistance rd=¨Vds/¨Id at constant Vgs.

Referring to the output characteristics of JFET it is clear that the drain resistance of a JFET has a large value ranging from 10k? to 1k?.


Related Discussions:- Gate source cut off voltage

Measures of regulator quality, Measures of regulator quality: The outp...

Measures of regulator quality: The output voltage can just be held roughly constant; the regulation is fixed by two measurements: 1. Load regulation is the alteration in ou

Carrier modulation by digital signals, Q. Carrier Modulation by Digital Sig...

Q. Carrier Modulation by Digital Signals? Digitally modulated signals with low-pass spectral characteristics can be transmitted directly through baseband channels (having low-p

How you can convert a galvanometer to a voltmeter, To convert a galvanomete...

To convert a galvanometer to a voltmeter, you should add a: a) High resistance in series b) High resistance in parallel c) Low resistance in series d) Low resis

Bias compensation, How is bias compensation in transistor is done using the...

How is bias compensation in transistor is done using thermistors and sensistor

Evaluate the magnitude of the wave impedance, Questions: (a) Suppose a ...

Questions: (a) Suppose a 100 kHz switching power supply. (i) Evaluate the magnitude of the wave impedance of the radiated field of a very short wire in the switching power s

Revenue loss due to loss of opportunity to serve, Revenue Loss Due to Loss ...

Revenue Loss Due to Loss of Opportunity to Serve The revenue loss because of "loss of opportunity to serve" is a extremely relevant but less visible aspect of revenue loss. Gu

What effect do non-tradable goods have on ppp, Q. What effect do non-tradab...

Q. What effect do non-tradable goods have on PPP? Answer: The consequence is quite substantial. In 1997 the production of non-tradable goods accounted for about 55% of U.S GN

DC machine, importance of dummy coils and equalizer connections

importance of dummy coils and equalizer connections

Illustrate computer-controlled routing, Q. Illustrate Computer-controlled r...

Q. Illustrate Computer-controlled routing? Computers are employed in network with common channel signaling (CCS) features. In CCS, there is a separate computer-controlled signa

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd