Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Q. What do you mean by Transconductance?
The control that the gate voltage has over the drain current is measured by transconductance and is similar to the transconductance of the tube.It may be defined as follows:
It is is the ratio of the change in drain current (ΔId) to the change in gate source voltage(Vgs) at constant drain source voltage that is
Transconductance = Id / Vgs at constant Vds.
The transconductance of a JFET is usually expressed either in mA or microamperes.
Amplification factor(µ)
It is the ratio of change in drain source voltage to the change in gate source voltage at constant drain current
Amplification factor= ΔVds/ ΔVgs at constant Id
Amplification factor of a JFET indicates how much more control the gate voltage has over drain current than has the drain voltage.
Relation among JFET parameters.
The relationship among JFET parametes can be established as under:
We know µ=Vds/ Vgs
Hence
µ = rd*gfs.
Amplification factor = a.c drain resistance * transconductance.
Q. Advantages of subscriber loops signalling? (i) Information can be exchange between processors much more faster than when channel associated signalling is used. (ii) As a
what is finger voltage in terms of thyristor
Compute the total capacitance with parallel connection: Three capacitors C 1 , C 2 and C 3 contain capacitance 20 μf, 15 μf, 30 μf, respectively. compute: 1. Charge on ea
How do i calculate critical resistance?
Single Phase Full Wave Controlled rectifier The single phase half wave controlled rectifier produce only one pulse of load current during one cycle of supply voltage
Conductors for Lines The sizing of conductor must depend upon the load it is expected to serve and other factors, such as capacity required in future. Or else conductors/cable
Give a short description of soft ferrites . Soft ferrites and their applications: all non- metallic compounds are consisting of ferric oxide and one or two bivalent metal oxid
Find the minimum rate of sampling that must be used to convert the message into digital form: (a) If an audio message has a spectral extent of 3 kHz. (b) If a television sign
Discuss the requirement for automatic gain control in AM receiver and automatic frequency control in FM. How are these 'control' voltage formed and used?
Construction of inductor An inductor is usually constructed as a coil of conducting material, typically opper wire, wrapped around a core either of air or ferrous material.
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!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd