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
Fixed bias (base bias): Diagram: Fixed bias (Base bias) This type of biasing is also known as base bias . In the instance above figure, the single power source (
Q. In the circuit shown in Figure, use the ideal op-amp technique to find: (a) v o as a function of v i . (b) The voltage at A.
Squeeze Castings: Squeeze casting, also known as liquid metal forging, is a combination of casting and forging process . The molten metal is poured into the bottom half
Explain Noise Noise is unwanted signals which degrade the desired signal content and therefore the performance of the system. Noise might be produced either externally or inte
Q. Explain Position servo in a radar system? Figure depicts the essential elements of a position servo system. In a radar system, an electromagnetic pulse is radiated from an a
The aim of this project is to design, construct and build a motorised base driven by two small dc motors. The motor drives are two H-bridges. The switching devices in these bridges
I have all my report about Vehicle suspension systems . But I need the simulation and hardware test for this project. I need you to do it and give me the observation.
distingish between maximum and minimum modes of operations of 8086 with timing diagrames
Q. Explain the working of spectrum analyzer and its applications. OR Draw block diagram of spectrum analyzer and explain its operation write down its importance applica
cpopy 16 bit data Register pair Example : Copy 16 bit data 3 E 21H in register pair BC Solution :The statement is LXI B 3E 21H 16 bit data 3E 21H in reg
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