Homework Help is Here – Start Your Trial Now!
Engineering
Electrical Engineering
An 8 pole, lap connected armature has 500 conductors and its generated e.m.f is 120V. If the A1 flux per pole is 20 mWb, then the speed of machine is, (а) 105 гpm (b) 420 гpm (c) 180 гpm (d) 720 rpm

An 8 pole, lap connected armature has 500 conductors and its generated e.m.f is 120V. If the A1 flux per pole is 20 mWb, then the speed of machine is, (а) 105 гpm (b) 420 гpm (c) 180 гpm (d) 720 rpm

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
See similar textbooks
Question
100%
An 8 pole, lap connected armature has 500 conductors and its generated e.m.f is 120V. If the A1 flux per pole is 20 mWb, then the speed of machine is, (а) 105 гpm (b) 420 гpm (c) 180 rpm (d) 720 гpm In the medium and large transformers, the total соpper losses should be A2 % of the rated output. (a) 0.7 to 0.9 (b) 0.5 to 2 (c) 0.2 to 0.6 (d) 0.4 to 1 In DC machines, provides the magnetic path as well as the АЗ mechanical support to the whole machines. (а) Rotor (b) Yoke (c) Pole shoe (d) Pole The transformer has 600 primary turns and 2500 secondary turns and its primary voltage of A4 240V, then the secondary voltage is given by, (а) 57.6V (b) 0.017V (c) 1000V (d) 240V The short circuit test is used to measure the of the A5 transformer. (a) Brush loss (b) Friction loss (c) Iron loss (d) Copper loss In CRO, the assembly of the cathode, Intensity grid, and accelerating anode is called an electron gun. A6 (a) Screen grid (b) Focus grid (c) Horizontal deflection plates (d) Vertical deflection plates A three phase star connected motor draws 5.6kW at 220V and it takes line current 18.2A, A7 then the power factor (Cosø ) is, (a) 0.807 (b) Zero (c) 0.707 (d) Unity The DC machine contains both shunt and series field windings, wound on to the same poles in А8 generator. (a) Shunt wound (b) Compound wound (c) Separately excited (d) Series wound
Transcribed Image Text:An 8 pole, lap connected armature has 500 conductors and its generated e.m.f is 120V. If the A1 flux per pole is 20 mWb, then the speed of machine is, (а) 105 гpm (b) 420 гpm (c) 180 rpm (d) 720 гpm In the medium and large transformers, the total соpper losses should be A2 % of the rated output. (a) 0.7 to 0.9 (b) 0.5 to 2 (c) 0.2 to 0.6 (d) 0.4 to 1 In DC machines, provides the magnetic path as well as the АЗ mechanical support to the whole machines. (а) Rotor (b) Yoke (c) Pole shoe (d) Pole The transformer has 600 primary turns and 2500 secondary turns and its primary voltage of A4 240V, then the secondary voltage is given by, (а) 57.6V (b) 0.017V (c) 1000V (d) 240V The short circuit test is used to measure the of the A5 transformer. (a) Brush loss (b) Friction loss (c) Iron loss (d) Copper loss In CRO, the assembly of the cathode, Intensity grid, and accelerating anode is called an electron gun. A6 (a) Screen grid (b) Focus grid (c) Horizontal deflection plates (d) Vertical deflection plates A three phase star connected motor draws 5.6kW at 220V and it takes line current 18.2A, A7 then the power factor (Cosø ) is, (a) 0.807 (b) Zero (c) 0.707 (d) Unity The DC machine contains both shunt and series field windings, wound on to the same poles in А8 generator. (a) Shunt wound (b) Compound wound (c) Separately excited (d) Series wound
Expert Solution
steps

Step by step

Solved in 3 steps with 1 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Knowledge Booster
Stability Analysis in Power System
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, electrical-engineering and related others by exploring similar questions and additional content below.
Recommended textbooks for you
Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
Electrical Engineering
ISBN:
9780133923605
Author:
Robert L. Boylestad
Publisher:
PEARSON
Delmar's Standard Textbook Of Electricity
Delmar's Standard Textbook Of Electricity
Electrical Engineering
ISBN:
9781337900348
Author:
Stephen L. Herman
Publisher:
Cengage Learning
Programmable Logic Controllers
Programmable Logic Controllers
Electrical Engineering
ISBN:
9780073373843
Author:
Frank D. Petruzella
Publisher:
McGraw-Hill Education
Fundamentals of Electric Circuits
Fundamentals of Electric Circuits
Electrical Engineering
ISBN:
9780078028229
Author:
Charles K Alexander, Matthew Sadiku
Publisher:
McGraw-Hill Education
Electric Circuits. (11th Edition)
Electric Circuits. (11th Edition)
Electrical Engineering
ISBN:
9780134746968
Author:
James W. Nilsson, Susan Riedel
Publisher:
PEARSON
Engineering Electromagnetics
Engineering Electromagnetics
Electrical Engineering
ISBN:
9780078028151
Author:
Hayt, William H. (william Hart), Jr, BUCK, John A.
Publisher:
Mcgraw-hill Education,
SEE MORE TEXTBOOKS