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. Derive the expression for generated emf in a dc generator.
Ans.
Expression for Generated emf in a DC Generator
We shall now derive an expression for the emf generated in a d.c. generator.
Let Φ = flux/pole in Wb
Z = total no. of armature conductors
P = no. of poles
A = no. of parallel paths = 2......for wave winding
= P....for lap winding
N = speed of armature in r.p.m.
Eg = e.m.f. of the generator = e.m.f./parallel path
Flux cut by one conductor in one revolution of the armature, dΦ = pΦ webers
Time taken to complete one revolution,
dt = 60/n sec.
e.m.f. generated/conductor dΦ/dt = PΦ/60/N = PΦN/60 volts
e.m.f. generator, Eg = e.m.f. per parallel path
= (e.m.f/conductor) × No. of conductor in series per parallel path
= PΦN/60 × Z/A
Eg = PΦZN/60A
A = Z...for wave winding
TDMA: Time division multiple access (TDMA) is a channel access method for shared medium (generally radio) networks. It permits several users to share the similar frequency chan
i need to submit a still model or a working model on science day(28 February). can you help me....
Modify the design of the circuit shown in FIGURE and draw a circuit diagram to provide rotary actuation in both directions using a single direction pump (to replace the bi-directio
what is the use of DStat
A case study is required for development of different digital versions of band-pass filter corresponding to its analogue prototype described by the following normalised transfer fu
KPI for Second Stage Implementation These KPIs deal along with the quality of the relationship among a supplier and a user (customer). They are significant to potential custom
Develop a PSpice program and use PROBE to obtain Bode plots of the magnitude and phase of the transfer function ¯V out / ¯V in for the high-pass ?lter circuit shown in Figure (a)
(a) Give the characteristics of ideal OP-Amp? (b) Illustrate inverting operational amplifier with feedback. get the expression for voltage gain with feedback? Write short not
wht is a zener diode
Q. Explain working of Common drain amplifie? When an ac signal drives the gate of JFET, it produces an ac drain current. It flows through Rs and produces an ac output voltage t
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