(a)A standard magnetic testing experiment using a ballistic galvanometer (BG) andreverse current method was conducted to determine the magnetic permeability ofan iron ring sample. The parameters used in the experiment are listed in TableQ2(a) below.Table Q2(a)Value150 turnsParameterThe no. of turns of the magnetizing coilThe no. of turns of the search coil200 turnsThe BG constant5 µC/scale divisionThe internal resistance of the BG150 22.5 cm2The cross-sectional area of the ring sampleThe diameter of the ring sampleThe resistance of the search coilThe resistance of the magnetizing coil12 cm10 27Ω(i) Determine the current needed to produce a magnetizing force of 10x10 A-turns/m.(ii) If the BG gives a throw of 70 scale division when the current is reversed,find the flux in the sample.(iii) Determine the relative permeability of the sample. (The permeability of freespace, lo = 4n x 10-7H/m).

N1=150 N2=200 k =5×10-6 Ri=150 Ω Rc =10 Ω D =12 cm A=2.5 cm2

A standard magnetic testing experiment using a ballistic galvanometer (BG) and reverse current method was conducted to determine the magnetic permeability of an iron ring sample. The parameters used in the experiment are listed in Table Q2(a) below. Table Q2(a) Parameter Value The no. of turns of the magnetizing coil 150 turns The no. of turns of the search coil 200 turns 5 µC/scale division 150 2 The BG constant The internal resistance of the BG The cross-sectional area of the ring sample The diameter of the ring sample 2.5 cm? 12 cm The resistance of the search coil 10 Ω The resistance of the magnetizing coil 7Ω (i) Detemine the current needed to produce a magnetizing force of 10×10³ A- turns/m. (ii) If the BG gives a throw of 70 scale division when the current is reversed, find the flux in the sample. (iii) Detemine the relative permeability of the sample. (The permeability of free space, Hn = 4n × 10-7H/m).

A standard magnetic testing experiment using a ballistic galvanometer (BG) and reverse current method was conducted to determine the magnetic permeability of an iron ring sample. The parameters used in the experiment are listed in Table Q2(a) below. Table Q2(a) Parameter Value The no. of turns of the magnetizing coil 150 turns The no. of turns of the search coil 200 turns 5 µC/scale division 150 2 The BG constant The internal resistance of the BG The cross-sectional area of the ring sample The diameter of the ring sample 2.5 cm? 12 cm The resistance of the search coil 10 Ω The resistance of the magnetizing coil 7Ω (i) Detemine the current needed to produce a magnetizing force of 10×10³ A- turns/m. (ii) If the BG gives a throw of 70 scale division when the current is reversed, find the flux in the sample. (iii) Detemine the relative permeability of the sample. (The permeability of free space, Hn = 4n × 10-7H/m).

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...

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