Division: Elctronic Eng.Subject: Energy conversion IYear : SecondQ1/ A / Discuss B-H curve of a ferro-magnetic material .B / Define the following terms (any three) :(i) MMF (ii ) magnetism. (iii ) Reluctance (v) flux densityQ 2 A magnetic circuit has the mean length of flux path of 20 cm, andcross sectional area of 1 cm?. Relative permeability of its material is2900. Find the mmf required to produce a flux density of 2 tesla in it. Ifan air gap of 1 mm is introgap as a fraction of the total mmf to maintain the same flux density.luced in it, find therequiredthe air

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Answered: Q1/ A / Discuss B-H curve of a…

Q1/ A / Discuss B-H curve of a ferro-magnetic material . B / Define the following terms (any three) : (i) MMF (ii ) magnetism. (iii ) Reluctance (v) flux density

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

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Concept explainers

Synchronous Generator

In comparison to an asynchronous generator, it is a machine where the rotor speed is equal to the rotating magnetic field produced by the stator, i.e., mechanical speed is equal to the electrical speed, thus called synchronous, and not asynchronous.

Salient Pole Rotor

Salient pole rotor includes a large number of exposed poles mounted on a magnetic wheel. The construction of a bright pole is as shown in the image on the left. The proposed poles are made of metal laminations. The rotor winding is provided on these poles and is supported by pole shoes.

Question

Division: Elctronic Eng.
Subject: Energy conversion I
Year : Second
Q1/ A / Discuss B-H curve of a ferro-magnetic material .
B / Define the following terms (any three) :
(i) MMF (ii ) magnetism. (iii ) Reluctance (v) flux density
Q 2 A magnetic circuit has the mean length of flux path of 20 cm, and
cross sectional area of 1 cm?. Relative permeability of its material is
2900. Find the mmf required to produce a flux density of 2 tesla in it. If
an air gap of 1 mm is intro
gap as a fraction of the total mmf to maintain the same flux density.
luced in it, find the
required
the air

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