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Chapter One: Vector Analysis The use of vectors and vector analysis ...

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Electromagnetic <strong>The</strong>orem<br />

(Dr. Omed Ghareb Abdullah) University <strong>of</strong> Sulaimani –College <strong>of</strong> Science – Physics Department<br />

Solution:<br />

In general the Cartesian coordinates are related to cylindrical <strong>and</strong> spherical coordinates by<br />

the following equations:<br />

<br />

r <br />

x<br />

x<br />

2<br />

2<br />

y<br />

y<br />

2<br />

2<br />

z<br />

2<br />

tan<br />

1<br />

tan<br />

y<br />

x<br />

1<br />

y<br />

x<br />

z z<br />

cos<br />

<strong>The</strong>refore these points in cylindrical coordinates are given as follows:<br />

1<br />

z<br />

r<br />

x<br />

(a).<br />

<br />

P1<br />

P1<br />

1<br />

x<br />

2<br />

P1<br />

y<br />

y<br />

P1<br />

2<br />

P1<br />

2<br />

5<br />

<br />

P1<br />

<strong>and</strong><br />

tan<br />

1<br />

y<br />

x<br />

P1<br />

P1<br />

z<br />

P1<br />

0<br />

tan<br />

1<br />

2 <br />

63<br />

1<br />

<strong>and</strong><br />

z<br />

P1<br />

0<br />

P 1(<br />

<br />

5,63 ,0)<br />

x<br />

P2<br />

(b).<br />

<br />

0<br />

P2<br />

<br />

x<br />

2<br />

P2<br />

y<br />

y<br />

P2<br />

2<br />

P2<br />

0<br />

0<br />

<br />

P2<br />

<strong>and</strong><br />

tan<br />

1<br />

y<br />

x<br />

P2<br />

P2<br />

z<br />

P2<br />

3<br />

tan<br />

1<br />

0 <br />

90<br />

0<br />

<strong>and</strong><br />

z<br />

P2<br />

3<br />

P<br />

2<br />

(0,90<br />

<br />

,3)<br />

x<br />

P3<br />

(c).<br />

<br />

1<br />

P3<br />

<br />

x<br />

2<br />

P3<br />

y<br />

P3<br />

y<br />

1<br />

2<br />

P3<br />

<br />

2<br />

<br />

<strong>and</strong><br />

P3<br />

tan<br />

1<br />

z<br />

y<br />

x<br />

P3<br />

P3<br />

P3<br />

2<br />

tan<br />

1<br />

1<br />

45<br />

1<br />

<br />

<strong>and</strong><br />

z<br />

P3<br />

2<br />

P 3(<br />

<br />

2,45 ,2)<br />

Also these points in spherical coordinates are given as follows:<br />

(a).<br />

x<br />

r<br />

P1<br />

P1<br />

1<br />

<br />

x<br />

2<br />

P1<br />

y<br />

y<br />

2<br />

P1<br />

P1<br />

z<br />

2<br />

2<br />

P1<br />

<br />

5<br />

<strong>and</strong><br />

tan<br />

P1<br />

1<br />

y<br />

x<br />

z<br />

P1<br />

P1<br />

P1<br />

0<br />

tan<br />

1<br />

2 <br />

63<br />

1<br />

<strong>and</strong><br />

<br />

P1<br />

cos<br />

1<br />

0<br />

90<br />

5<br />

<br />

P 1(<br />

<br />

5,63 ,90<br />

<br />

)<br />

xP2<br />

0<br />

(b).<br />

<br />

P2<br />

x<br />

2<br />

P2<br />

y<br />

y<br />

P2<br />

2<br />

P2<br />

0<br />

z<br />

2<br />

P2<br />

3<br />

<strong>and</strong><br />

<br />

P2<br />

z<br />

tan<br />

P2<br />

1<br />

3<br />

y<br />

x<br />

P2<br />

P2<br />

tan<br />

1<br />

0 <br />

90<br />

0<br />

<strong>and</strong><br />

<br />

P2<br />

cos<br />

1<br />

3 <br />

0<br />

3<br />

P<br />

2<br />

(3,90<br />

<br />

,0<br />

<br />

)<br />

67

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