Chapter One: Vector Analysis The use of vectors and vector analysis ...
Chapter One: Vector Analysis The use of vectors and vector analysis ...
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 />
<strong>The</strong> infinitesimal displacements in cylindrical coordinates are:<br />
<br />
<br />
<br />
Thus, the general infinitesimal displacement is:<br />
<br />
<strong>The</strong> infinitesimal volume element , in cylindrical coordinates, is:<br />
<br />
<strong>The</strong> infinitesimal surface elements , in cylindrical coordinates, is:<br />
<br />
<strong>The</strong> <strong>vector</strong> derivatives in cylindrical coordinates are:<br />
Gradient:<br />
Divergence:<br />
Curl:<br />
Laplacian:<br />
V 1 <br />
∙V 1 <br />
T ∂T<br />
∂ 1 <br />
∂<br />
∂ 1 <br />
∂T<br />
∂φ ∂T<br />
∂z <br />
∂<br />
∂φ ∂ ∂z <br />
∂ <br />
∂ ∂ <br />
∂z ∂ <br />
∂z ∂ <br />
∂ 1 ∂<br />
∂ ∂ <br />
∂ <br />
T 1 <br />
∂<br />
∂<br />
∂T<br />
<br />
∂ 1 ∂ T<br />
∂φ ∂ T<br />
∂z <br />
Problem:<br />
a) Fide the divergence <strong>of</strong> the function:<br />
V 2sin φ sinφcosφ 3z <br />
45